Cacaliopsis nardosmia (35)
Cachrys libanotis (7)
Cadaba aphylla (3)
Caesalopinia palmeri (2)
Caesalpinia angulata (4)
Caesalpinia arenosa (9)
Caesalpinia bonduc (2)
Caesalpinia cacalaco (6)
Caesalpinia caladenia (5)
Caesalpinia drepanocarpa (1)
Caesalpinia ferrea (4)
Caesalpinia gilliesii (22)
Caesalpinia kavaiensis (11)
Caesalpinia palmeri (19)
Caesalpinia pannosa (5)
Caesalpinia panosa (7)
Caesalpinia pauciflora (2)
Caesalpinia platyloba (8)
Caesalpinia pulcherrima (16)
Caesalpinia sp. (1)
Caesalpinia spinosa (16)
Cakile arctica (2)
Cakile edentula (8)
Cakile lanceolata (1)
Cakile maritima (179)
Caladenia attingens ssp. attingens (8)
Caladenia brownii (3)
Caladenia brunonis (8)
Caladenia ferruginea (2)
Caladenia filamentosa (1)
Caladenia flava (2)
Caladenia flava ssp. sylvestris (10)
Caladenia gardneri (9)
Caladenia infundibularis (4)
Caladenia latifolia (3)
Caladenia licata (2)
Caladenia lobata (4)
Caladenia longicauda ssp. eminens (6)
Caladenia nana (1)
Caladenia pectinata (8)
Caladenia speciosa (3)
Caladium bicolor (8)
Caladium lindenii (1)
Caladium praetermissum (1)
Caladium sp. (4)
Calamagrostis bolanderi (14)
Calamagrostis breweri (20)
Calamagrostis canadensis (20)
Calamagrostis canadensis var. langsdorfii (7)
Calamagrostis extremiorientalis (9)
Calamagrostis foliosa (9)
Calamagrostis koelerioides (7)
Calamagrostis nutkaensis (34)
Calamagrostis ophitidis (25)
Calamagrostis purpurascens (18)
Calamagrostis rubescens (21)
Calamagrostis stricta ssp. inexpansa (10)
Calamagrostis stricta ssp. stricta (4)
Calamintha brauneana (6)
Calamintha nepeta (10)
Calamintha nepetoides (1)
Calamintha sylvatica ssp. ascendens (22)
Calamovilfa gigantea (4)
Calandrinia breweri (50)
Calandrinia ciliata (85)
Calandrinia eremaea (3)
Calandrinia maritima (1)
Calandrinia menziesii (112)
Calandrinia speciosa (4)
Calandrinia spectabilis (4)
Calanthe arisanensis. (1)
Calanthe sieboldii (2)
Calanthe striata (1)
Calanthe triplicata (2)
Calathea concinna (2)
Calathea crotalifera (4)
Calathea insignis (1)
Calathea lancifolia (1)
Calathea louisae (2)
Calathea lutea (2)
Calathea makoyana (2)
Calathea mirabilis (2)
Calathea misantlensis (1)
Calathea orbifolia (2)
Calathea ornata (5)
Calathea picturata (1)
Calathea picturata cv. Argentea (1)
Calathea roseopicta (1)
Calathea sp. (1)
Calathea warscewiczii (2)
Calathea zebrina (2)
Calathea zebrina var. humilior (1)
Calatropis procera (2)
Calcadenia fremontii (1)
Calceolaria biflora (4)
Calceolaria bilatata (1)
Calceolaria calycina (2)
Calceolaria calynopsis (2)
Calceolaria cana (5)
Calceolaria crenatiflora (2)
Calceolaria filicaulis ssp. filicaulis (7)
Calceolaria hypericina (1)
Calceolaria integrifolia (5)
Calceolaria john-innes (1)
Calceolaria mexicana (6)
Calceolaria polifolia (2)
Calceolaria purpurea (3)
Calceolaria sp. (3)
Calceolaria teucrioides (1)
Calceolaria tomentosa (6)
Calceolaria uniflora ssp. darwinii (1)
Calceolaria x herbeohybrida (8)
Caldcluvia paniculata (3)
Caldcluvia paniculosa (6)
Calectasia grandiflora (2)
Calendula arvenis (1)
Calendula arvensis (60)
Calendula officinalis (69)
Calendula suffruticosa (2)
Calendula suffruticosa ssp. maritima (1)
Calia secundiflora (1)
Calibanus hookeri (4)
Calibrachoa (7)
Calibrachoa sp. (3)
Calicotome spinosa (2)
Calicotome villosa (1)
California macrophylla (82)
Calla palustris (33)
Callaeum macropterum (3)
Calliandra californica (31)
Calliandra conferta (4)
Calliandra dysantha (1)
Calliandra eriophylla (58)
Calliandra grandiflora (2)
Calliandra haematocephala (15)
Calliandra humilis var. humilis (1)
Calliandra peninsularis (8)
Calliandra surinamensis (9)
Calliandra tweedii (1)
Callianthe megapotamica (2)
Callianthemum anemonoides (1)
Callianthemum coriandrifolium (12)
Callicarpa americana (9)
Callicarpa bodinieri (4)
Callicarpa dichotoma (2)
Callicarpa japonica (1)
Callicarpa mollis (5)
Callicarpa pilosissima (5)
Callicarpa rubella (3)
Callilstemon citrinus (1)
Callirhoë alaeoides (1)
Callirhoe involucrata (19)
Callisaurus draconoides (1)
Calliscirpus brachythrix (5)
Calliscirpus criniger (15)
Callisia navicularis (3)
Callisia ornata (2)
Callisia repens (1)
Callistachys lanceolata (1)
Callistemon citrinus (28)
Callistemon linearis (7)
Callistemon pachyphyllus (1)
Callistemon pachyphyllus var. viridis (1)
Callistemon pallidus (1)
Callistemon phoeniceus (3)
Callistemon rigidus (2)
Callistemon sp. (1)
Callistemon speciosus (2)
Callistemon viminalis (17)
Callistemon viminialis (2)
Callistephus chinensis (21)
Callistopteris apiifolia (12)
Callistopteris baldwinii (8)
Callithamnion epiphyticum (1)
Callitriche fassettii (3)
Callitriche heterophylla (16)
Callitriche heterophylla ssp. bolanderi (4)
Callitriche heterophylla var. bolanderi (20)
Callitriche marginata (31)
Callitriche palustris (4)
Callitriche stagnalis (11)
Callitris columellalis (3)
Callitris glaucophylla (1)
Callitropsis bakeri (1)
Callitropsis nootkatensis (29)
Callophyllis ligulata (1)
Calluna vulgaris (19)
Calocasia esculenta (2)
Calocedrus decurrens (120)
Calocedrus formosana (2)
Calocedrus decurrens (11)
Calochortus (2)
Calochortus albus (260)
Calochortus albus ssp. rubellus (2)
Calochortus albus var. roseus (1)
Calochortus albus var. rubellus (4)
Calochortus albus x Calochortus monophyllus hybrid (8)
Calochortus albus x monophyllus (3)
Calochortus amabilis (127)
Calochortus ambiguus (9)
Calochortus amoenus (48)
Calochortus apiculatus (30)
Calochortus argillosus (93)
Calochortus argillosus aff. (4)
Calochortus aureus (10)
Calochortus barbatus (1)
Calochortus bruneaunis (113)
Calochortus catalinae (127)
Calochortus clavatus (32)
Calochortus clavatus ssp. recurvifolius (2)
Calochortus clavatus var. avius (96)
Calochortus clavatus var. clavatus (46)
Calochortus clavatus var. gracilis (21)
Calochortus clavatus var. pallidus (32)
Calochortus clavatus var. recurvifolius (9)
Calochortus coeruleus (56)
Calochortus concolor (54)
Calochortus coxii (7)
Calochortus dunnii (43)
Calochortus elegans (37)
Calochortus elegans var. nanus (6)
Calochortus elegans var. selwayens (2)
Calochortus eurycarpus (52)
Calochortus excavatus (67)
Calochortus fimbriatus (78)
Calochortus flexuosus (74)
Calochortus greenei (31)
Calochortus gunnisonii (38)
Calochortus gunnisonii var. gunnisonii (14)
Calochortus gunnisonii var. perpulcher (1)
Calochortus howellii (45)
Calochortus invenustus (149)
Calochortus kennedyi (65)
Calochortus kennedyi ssp. munzii (2)
Calochortus kennedyi var. kennedyi (128)
Calochortus kennedyi var. munzii (32)
Calochortus kennedyi x invenustus (1)
Calochortus leichtlinii (215)
Calochortus longebarbatus var. longebarbatus (59)
Calochortus luteus (249)
Calochortus luteus x superbus (3)
Calochortus lyallii (12)
Calochortus macrocarpus (81)
Calochortus macrocarpus var. macrocarpus (4)
Calochortus macrocarpus var. maculosus (11)
Calochortus minimus (78)
Calochortus minimus x nudus (1)
Calochortus monophyllus (105)
Calochortus nitidus (4)
Calochortus nudus (73)
Calochortus nuttalli (3)
Calochortus nuttallii (49)
Calochortus obispoensis (49)
Calochortus palmeri (12)
Calochortus palmeri var. munzii (42)
Calochortus palmeri var. palmeri (65)
Calochortus panamintensis (20)
Calochortus persistens (55)
Calochortus plummer's (1)
Calochortus plummerae (108)
Calochortus pulchellus (81)
Calochortus raichei (20)
Calochortus simulans (49)
Calochortus sp. (21)
Calochortus spathulatus (4)
Calochortus splendens (137)
Calochortus striatus (89)
Calochortus subalpinus (26)
Calochortus superbus (177)
Calochortus supurbus (3)
Calochortus syntrophus (48)
Calochortus syntrophus var. yahiensis (5)
Calochortus tiburonensis (101)
Calochortus tolmiei (180)
Calochortus tolmiei x C. amabilis (2)
Calochortus umbellatus (82)
Calochortus umpquaensis (7)
Calochortus uniflorus (94)
Calochortus venustulus (7)
Calochortus venustus (348)
Calochortus vestae (29)
Calochortus weedii (31)
Calochortus weedii var. intermedius (94)
Calochortus weedii var. weedii (111)
Calochortus westonii (26)
Calodendrum capense (28)
Calophyllum inophyllum (17)
Caloplaca elegans (3)
Calopogon barbatus (2)
Calopogon multiflorus (1)
Calopogon pallidus (2)
Calopogon pulchellus (3)
Calopogon tuberosus (2)
Calopogon tuberosus var. tuberosus (9)
Calopogonium caeruleum (2)
Calothamnus quadrifidus (1)
Calothamnus villosus (7)
Calotropis gigantea (15)
Calotropis procera (17)
Calpurnia aurea (2)
Caltha biflora (1)
Caltha leptosepala (126)
Caltha leptosepala ssp. biflora (1)
Caltha leptosepala ssp. howellii (4)
Caltha leptosepala ssp. leptosepala (5)
Caltha leptosepala var. biflora (4)
Caltha palustris (55)
Caltha palustris ssp. palustris (7)
Caltha palustris var. arctica (2)
Caltha polypetala (1)
Caltha sp. (1)
Calvstegia longipes (1)
Calycadenia fremontii (51)
Calycadenia hooveri (5)
Calycadenia micrantha (6)
Calycadenia mollis (32)
Calycadenia multiglandulosa (89)
Calycadenia oppositifolia (16)
Calycadenia pauciflora (17)
Calycadenia sp. (1)
Calycadenia spicata (19)
Calycadenia truncata (87)
Calycadenia villosa (17)
Calycanthus chinensis (11)
Calycanthus floridus (2)
Calycanthus occidentalis (118)
Calycoseris parryi (73)
Calycoseris wrightii (44)
Calydorea coelestina (1)
Calylophus drummondianus (1)
Calylophus hartwegii ssp. fendleri (2)
Calylophus lavandulifolius (39)
Calylophus serrulatus (4)
Calylophus tubicula (3)
Calymmodon asiaticus (1)
Calymmodon mnioides (1)
Calymmodon ordinatus (1)
Calymmodon orientalis (15)
Calyophus drummondianus (1)
Calyophus lavandulifolia (5)
Calyophus lavandulifolius (1)
Calyophus serrulatus (2)
Calypogeia sphagnicola (9)
Calypso bulbosa (150)
Calypso bulbosa var. occidentalis (38)
Calyptocarpus vialis (8)
Calyptridium monandrum (105)
Calyptridium monospermum (160)
Calyptridium parryi var. hesseae (18)
Calyptridium parryi var. martirense (2)
Calyptridium parryi var. nevadense (4)
Calyptridium parryi var. parryi (38)
Calyptridium pulchellum (27)
Calyptridium pygmaeum (6)
Calyptridium quadripetalum (6)
Calyptridium roseum (6)
Calyptridium sp. (2)
Calyptridium umbellatum (137)
Calyptridium umbellatum ssp. caudiciferum (1)
Calystegia aridus (2)
Calystegia atriplexifolia ssp. buttensis (3)
Calystegia atriplicifolia (4)
Calystegia atriplicifolia ssp. buttensis (35)
Calystegia collina (9)
Calystegia collina ssp. collina (60)
Calystegia collina ssp. oxyphylla (29)
Calystegia collina ssp. tridactylosa (10)
Calystegia collina ssp. venusta (31)
Calystegia collina subsp. venusta (2)
Calystegia felix (19)
Calystegia longipes (73)
Calystegia macrostegia (52)
Calystegia macrostegia cyclostegia (2)
Calystegia macrostegia ssp. amplissima (11)
Calystegia macrostegia ssp. arida (2)
Calystegia macrostegia ssp. cyclostegia (52)
Calystegia macrostegia ssp. intermedia (16)
Calystegia macrostegia ssp. macrostegia (12)
Calystegia macrostegia ssp. tenuifolia (11)
Calystegia macrostegia var. amplissima (1)
Calystegia macrostegia var. cyclostegia (2)
Calystegia malacophylla (21)
Calystegia malacophylla ssp. malacophylla (53)
Calystegia malacophylla ssp. pedicellata (23)
Calystegia malacophylla var. berryi (7)
Calystegia microstegia ssp. intermedia (1)
Calystegia nyctagineus (1)
Calystegia occidentalis (30)
Calystegia occidentalis ssp. fulcrata (48)
Calystegia occidentalis ssp. occidentalis (78)
Calystegia peirsonii (25)
Calystegia purpurata (15)
Calystegia purpurata ssp. purpurata (88)
Calystegia purpurata ssp. saxicola (33)
Calystegia sepium (14)
Calystegia sepium ssp. americana (7)
Calystegia sepium ssp. limnophila (19)
Calystegia sepium ssp. sepium (8)
Calystegia sepium ssp. spectabilis (4)
Calystegia silvatica (7)
Calystegia silvatica ssp. disjuncta (4)
Calystegia soldanella (122)
Calystegia sp. (4)
Calystegia stebbinsii (56)
Calystegia subacaulis (21)
Calystegia subacaulis ssp. episcopalis (10)
Calystegia subacaulis ssp. subacaulis (25)
Calystegia vanzuukiae (57)
Calytonia gypsophiloides (1)
Calytrix decandra (2)
Calytrix lechenaultii (1)
Calytrix oldfieldii (1)
Calytrix tetragona (1)
Camassia (1)
Camassia cusickii (3)
Camassia leichleinii ssp. leichtleinii (3)
Camassia leichtlinii (16)
Camassia leichtlinii ssp. leichtlinii (4)
Camassia leichtlinii ssp. suksdorfii (33)
Camassia quamash (91)
Camassia quamash ssp. breviflora (68)
Camassia quamash ssp. quamash (19)
Camassia quamash ssp. utahensis (5)
Camassia quamash var. breviflora (2)
Camassia sp. (1)
Camelina microcarpa (15)
Camelina sp. (1)
Camellia azalea (2)
Camellia crapnelliana (1)
Camellia grijsii (4)
Camellia irrawadiensis (3)
Camellia japonica (61)
Camellia japonica var. macrocarpa (3)
Camellia japonica x camellia cuspidata (1)
Camellia pitardii (1)
Camellia pitardii var. yunnanica (4)
Camellia reticulata (15)
Camellia rusticana (3)
Camellia saluenensis (2)
Camellia sasanqua (19)
Camellia sp. (33)
Camellia x reticulata (1)
Camellia yunnanensis (2)
Camisosonia contorta (2)
Camissonia benitensis (209)
Camissonia boothii (2)
Camissonia boothii ssp. condensata (2)
Camissonia boothii ssp. decorticans (1)
Camissonia boothii var. alyssoides (1)
Camissonia breviflora (1)
Camissonia brevipes ssp. brevipes (2)
Camissonia campestris (4)
Camissonia campestris ssp. campestris (227)
Camissonia campestris ssp. obispoensis (32)
Camissonia cardiophylla ssp. cardiophylla (3)
Camissonia cardiophylla ssp. robusta (1)
Camissonia claviformis (6)
Camissonia claviformis ssp. claviformis (3)
Camissonia claviformis ssp. funerea (2)
Camissonia claviformis ssp. integrior (8)
Camissonia claviformis ssp. piersonii (2)
Camissonia contorta (115)
Camissonia dentata (17)
Camissonia integrifolia (44)
Camissonia kernensis ssp. gilmanii (13)
Camissonia kernensis ssp. kernensis (49)
Camissonia lacustris (54)
Camissonia ovata (1)
Camissonia parvula (23)
Camissonia pubens (15)
Camissonia pusilla (31)
Camissonia refracta (2)
Camissonia sierrae ssp. alticola (72)
Camissonia sierrae ssp. sierrae (104)
Camissonia strigulosa (80)
Camissonia strigulosa or contorta (4)
Camissoniopsis bistorta (83)
Camissoniopsis cheiranthifolia (47)
Camissoniopsis cheiranthifolia ssp. cheiranthifolia (114)
Camissoniopsis cheiranthifolia ssp. suffruticosa (78)
Camissoniopsis confusa (15)
Camissoniopsis guadalupensis ssp. clementina (9)
Camissoniopsis hardhamiae (16)
Camissoniopsis hirtella (67)
Camissoniopsis ignota (15)
Camissoniopsis intermedia (19)
Camissoniopsis lewisii (42)
Camissoniopsis luciae (1)
Camissoniopsis micrantha (68)
Camissoniopsis pallida (30)
Camissoniopsis pallida ssp. hallii (4)
Camissoniopsis pallida ssp. pallida (36)
Camissoniopsis robusta (19)
Camissoniopsis sp. (12)
Campanula angustiflora (15)
Campanula aparinoides (13)
Campanula aucheri (3)
Campanula aurita (1)
Campanula barbata (4)
Campanula betulifolia (3)
Campanula bravensis (1)
Campanula californica (56)
Campanula carnica (1)
Campanula carnica ssp. carnica (7)
Campanula carpatica (8)
Campanula celsii ssp. celsii (8)
Campanula cenisia (1)
Campanula cervicaria (2)
Campanula cespitosa (8)
Campanula cochleariifolia (11)
Campanula cochleariifolia-f-alba (2)
Campanula divaricata (6)
Campanula elatines (2)
Campanula erinus (7)
Campanula exigua (28)
Campanula formanekiana (4)
Campanula garganica (3)
Campanula glomerata (11)
Campanula glomerata ssp. glomerata (5)
Campanula griffini (1)
Campanula griffinii (5)
Campanula hybrid (3)
Campanula incurva (11)
Campanula isophylla (8)
Campanula istriaca (5)
Campanula lactiflora (9)
Campanula lasiocarpa (5)
Campanula latifolia (9)
Campanula medium (18)
Campanula morettiana (3)
Campanula muralis (3)
Campanula parryi (5)
Campanula parryi var. parryi (3)
Campanula patula (7)
Campanula persicifolia (14)
Campanula persicifolia var. planiflora (1)
Campanula piperi (3)
Campanula portenschlagiana (5)
Campanula poscharskyana (7)
Campanula prenanthoides (3)
Campanula primulifolia (1)
Campanula punctata (11)
Campanula punctata ssp. rosea (1)
Campanula pyramidalis (5)
Campanula rapunculoides (13)
Campanula rapunculus (3)
Campanula rotundifolia (112)
Campanula scabrella (34)
Campanula scheuchzeri (1)
Campanula scouleri (23)
Campanula sharsmithiae (17)
Campanula shetleri (40)
Campanula sibirica (5)
Campanula sp. (9)
Campanula spicata (4)
Campanula takesimana (7)
Campanula thyrsoides (2)
Campanula thyrsoides ssp. thyrsoides (2)
Campanula tommasiniana (10)
Campanula topaliana (1)
Campanula topaliana ssp. cordifolia (1)
Campanula trachelium (11)
Campanula uniflora (6)
Campanula versicolor (1)
Campanula vidalii (3)
Campanula wilkinsiana (46)
Campanula x ericsmithii (2)
Campanula zoysii (15)
Campanulastrum americanum (18)
Campomanesia viatoris (32)
Campsis grandiflora (6)
Campsis radicans (38)
Campsis sp. (1)
Camptotheca acuminata (8)
Camptotheca sp. (2)
Campylandra chinensis (1)
Campyloneurum angustifolium (3)
Campyloneurum wercklei (3)
Campylopus fragilis (9)
Campylopus introflexus (17)
Campylopus schmidii (13)
Campylopus subulatus (11)
Canadanthus modestus (7)
Cananga odorata (6)
Cananga odorata var. fruticosa (2)
Canaria canariensis (1)
Canavalia rosea (18)
Canbya aurea (3)
Canbya candida (11)
Canis mesomelas (1)
Canistropsis billbergiodes var. azurea (1)
Canna cv. Bengal Tiger (1)
Canna edulis (4)
Canna indica (7)
Canna sp. (14)
Canna x generalis (1)
Cannabis sativa (19)
Canotia holacantha (14)
Canthium armatum (4)
Canthium suberosum (15)
Cantua buxifolia (2)
Cantua flexuosa (5)
Cantua pyrifolia (2)
Cantua quercifolia (3)
Caolochortus venustus (1)
Capnoides sempervirens (2)
Capparis aegyptia (2)
Capparis echinocarpa (1)
Capparis fascicularis (2)
Capparis flexuosa (2)
Capparis khuamak (1)
Capparis ovata (7)
Capparis pubiflora (1)
Capparis sandwichiana (7)
Capparis spinosa (12)
Capparis tonkinensis (1)
Capparis viburnifolia (1)
Capraria biflora (1)
Capsella bursa-pastoris (89)
Capsicum annuum (49)
Capsicum annuum 'Habanero' (1)
Capsicum bacattum (1)
Capsicum baccatum (4)
Capsicum chinense (1)
Capsicum frutescens (1)
Capsicum pubescens (5)
Capsicum sp. (2)
Caputia pyramidata (8)
Caputia scaposa (2)
Caragana arborescens (9)
Caragana pygmaea (2)
Caralluma acutangula (2)
Caralluma europaea (1)
Caralluma socotrana (2)
Cardamine amara (2)
Cardamine angulata (33)
Cardamine angustata (2)
Cardamine bellidifolia (17)
Cardamine bellidifolia var. bellidifolia (5)
Cardamine bellidifolia var. pachyphylla (10)
Cardamine breweri (30)
Cardamine bulbifera (5)
Cardamine californica (288)
Cardamine californica var. californica (1)
Cardamine californica var. sinuata (2)
Cardamine concatenata (17)
Cardamine constancei (1)
Cardamine cordifolia (27)
Cardamine diphylla (19)
Cardamine douglassii (4)
Cardamine enneaphyllos (8)
Cardamine flexuosa (3)
Cardamine hirsuta (36)
Cardamine nuttallii (34)
Cardamine nuttallii var. gemmata (7)
Cardamine nuttallii var. nuttallii (16)
Cardamine occidentalis (2)
Cardamine oligosperma (81)
Cardamine pachystigma (25)
Cardamine pachystigma var. dissectifolia (4)
Cardamine parviflora var. arenicola (3)
Cardamine pensylvanica (14)
Cardamine pentaphyllos (5)
Cardamine pratensis (2)
Cardamine purpurea (3)
Cardamine sp. (12)
Cardamine trifolia (7)
Cardaminopsis arenosa (3)
Cardaminopsis croatica (5)
Cardaria draba (12)
Cardaria pubescens (1)
Cardaria sp. (2)
Cardiocrinium giganteum (2)
Cardiocrinum giganteum var. yunnanense (1)
Cardiocrinum glehnii (2)
Cardionema ramosissimum (59)
Cardiospermum corindum (48)
Cardiospermum halicacabum (12)
Cardiospermum keyense (3)
Cardiospermum spinosum (8)
Cardopatum corymbosum (1)
Carduoideae sp. (1)
Carduus acanthoides (4)
Carduus acanthoides ssp. acanthoides (5)
Carduus acanthoides x c. nutans (4)
Carduus carduelis (6)
Carduus crassifolius (5)
Carduus crispus ssp. multiflorus (1)
Carduus defloratus ssp. carlinifolius (1)
Carduus defloratus ssp. defloratus (2)
Carduus micropterus (7)
Carduus nutans (121)
Carduus personata (10)
Carduus pycnocephalus (108)
Carduus pycnocephalus ssp. pycnocephalus (20)
Carduus tenuiflorus (43)
Carex abrupta (17)
Carex alba (8)
Carex albonigra (11)
Carex alligata (3)
Carex alma (19)
Carex amplifolia (21)
Carex angustata (5)
Carex appalachica (3)
Carex aquatilis (5)
Carex aquatilis var. aquatilis (7)
Carex aquatilis var. dives (5)
Carex arcta (9)
Carex atherodes (13)
Carex athrostachya (20)
Carex atrata ssp. aterrima (8)
Carex atrata ssp. atrata (3)
Carex aurea (24)
Carex baccans (3)
Carex barbarae (23)
Carex bella (6)
Carex bolanderi (28)
Carex brainerdii (7)
Carex brevicaulis (17)
Carex breweri (26)
Carex buxbaumii (14)
Carex californica (26)
Carex canescens (12)
Carex canescens ssp. canescens (1)
Carex capillaris (1)
Carex capitata (11)
Carex cephalophora (7)
Carex comosa (9)
Carex concinnoides (23)
Carex congdonii (22)
Carex cordillerana (3)
Carex crawfordii (2)
Carex crinita (3)
Carex curvula (1)
Carex cusickii (21)
Carex cyrtostachya (16)
Carex davyi (34)
Carex deflexa var. boottii (5)
Carex densa (36)
Carex diandra (5)
Carex digitata (1)
Carex disperma (11)
Carex distans (10)
Carex divulsa (2)
Carex divulsa ssp. divulsa (8)
Carex divulsa var. divulsa (3)
Carex donnell-smithii (1)
Carex douglasii (15)
Carex duriuscula (9)
Carex eburnea (1)
Carex echinata (8)
Carex echinata ssp. echinata (14)
Carex echinata ssp. phyllomanica (10)
Carex elata (2)
Carex exilis (1)
Carex exsiccata (15)
Carex extensa (2)
Carex ferruginea ssp. ferruginea (5)
Carex feta (19)
Carex filifolia (6)
Carex filifolia var. erostrata (16)
Carex fissuricola (16)
Carex flacca (2)
Carex flava (4)
Carex folliculata (2)
Carex forficula (1)
Carex fracta (25)
Carex fraseriana (2)
Carex garberi (1)
Carex geyeri (27)
Carex globosa (41)
Carex gracilior (8)
Carex grayi (3)
Carex gynodynama (20)
Carex halleriana (2)
Carex halliana (30)
Carex hallii (6)
Carex harfordii (25)
Carex hassei (18)
Carex haydeniana (7)
Carex helleri (10)
Carex hendersonii (7)
Carex heteroneura (24)
Carex heteroneura var. heteroneura (5)
Carex hirtissima (7)
Carex holmgreniorum (10)
Carex hoodii (15)
Carex humilis (3)
Carex hystericina (20)
Carex idahoa (18)
Carex illota (20)
Carex incurviformis (20)
Carex inops (7)
Carex inops ssp. inops (9)
Carex integra (11)
Carex interior (5)
Carex intumescens (3)
Carex jepsonii (7)
Carex jonesii (12)
Carex lacustris (4)
Carex laeviculmis (6)
Carex lasiocarpa (9)
Carex lemmonii (22)
Carex lenticularis (4)
Carex lenticularis var. impressa (4)
Carex lenticularis var. limnophila (6)
Carex lenticularis var. lipocarpa (11)
Carex leporina (11)
Carex leporinella (16)
Carex leptalea (6)
Carex leptopoda (12)
Carex limosa (46)
Carex liparocarpos (1)
Carex livida (1)
Carex lupuliformis (2)
Carex lupulina (12)
Carex luzulifolia (11)
Carex luzulina (13)
Carex luzulina var. ablata (6)
Carex lyngbyei (28)
Carex macrocephala (8)
Carex mariposana (9)
Carex mendocinensis (31)
Carex mertensii (11)
Carex michauxiana (3)
Carex michelii (1)
Carex microglochin (1)
Carex microptera (10)
Carex multicaulis (42)
Carex multicostata (5)
Carex nardina (7)
Carex nebrascensis (25)
Carex nervina (9)
Carex neurophora (4)
Carex nigricans (18)
Carex norvegica (7)
Carex nova (6)
Carex nudata (45)
Carex obispoensis (31)
Carex obnupta (54)
Carex occidentalis (17)
Carex oligosperma (3)
Carex orestera (13)
Carex oshimensis (1)
Carex otrubae (2)
Carex pachystachya (16)
Carex pansa (9)
Carex parryana (6)
Carex pauciflora (3)
Carex pellita (22)
Carex pendula (12)
Carex pensylvanica (6)
Carex petasata (37)
Carex phaeocephala (12)
Carex pilosa (6)
Carex plantaginea (2)
Carex platyphylla (2)
Carex praeceptorum (20)
Carex praecox (9)
Carex praegracilis (20)
Carex praticola (10)
Carex preslii (13)
Carex proposita (7)
Carex pulicaris (1)
Carex raynoldsii (8)
Carex retrorsa (3)
Carex rossii (19)
Carex sabulosa (10)
Carex saliniformis (12)
Carex sartwelliana (12)
Carex scabriuscula (22)
Carex schottii (7)
Carex scirpoidea ssp. pseudoscirpoidea (8)
Carex scirpoidea var. pseudoscirpoidea (6)
Carex scoparia (6)
Carex scopulorum (3)
Carex scopulorum var. bracteosa (24)
Carex senta (8)
Carex serpenticola (24)
Carex serratodens (30)
Carex sheldonii (26)
Carex simulata (12)
Carex sp. (9)
Carex specifica (6)
Carex spectabilis (18)
Carex spissa (37)
Carex sprengelii (9)
Carex stipata (8)
Carex stipata var. stipata (13)
Carex straminiformis (9)
Carex subbracteata (9)
Carex subfusca (24)
Carex subnigricans (17)
Carex tahoensis (6)
Carex testacea (3)
Carex texensis (4)
Carex tiogana (15)
Carex tompkinsii (12)
Carex triquetra (8)
Carex tuckermanii (7)
Carex tumulicola (12)
Carex unilateralis (11)
Carex utriculata (26)
Carex vallicola (9)
Carex vernacula (24)
Carex vesicaria (19)
Carex viridula (1)
Carex viridula ssp. viridula (17)
Carex vulpinoidea (9)
Carex whitneyi (14)
Carex xerophila (31)
Carica papaya (33)
Carissa carandas (1)
Carissa macrocarpa (28)
Carlina acanthifolia (3)
Carlina acanthifolia ssp. utzka (6)
Carlina acaulis (6)
Carlina acaulis ssp. acaulis (2)
Carlina acaulis ssp. caulescens (4)
Carlina corymbosa (7)
Carlina gummifera (1)
Carlina lanata (7)
Carlina vulgaris (1)
Carlowrightia (2)
Carlowrightia arizonica (58)
Carlowrightia californica (1)
Carlowrightia neesiana (6)
Carlowrightia pectinata (3)
Carlquistia muirii (41)
Carludovica sp. (1)
Carmichaelia australis (1)
Carmichaelia flagelliformis (1)
Carminatia tenuiflora (4)
Carminatina tenuiflora (5)
Carnegia gigantea (3)
Carnegiea gigantea (148)
Carpenteria californica (68)
Carphephorus corymbosus (5)
Carphephorus odoratissimus var. carphephorus (4)
Carphephorus odoratissimus var. odoratissimus (3)
Carphephorus paniculatus (2)
Carphephorus pseudoliatris (3)
Carphochaete bigelovii (4)
Carphochaete pringlei (10)
Carpinus betulus (14)
Carpinus caroliniana (15)
Carpinus caroliniana ssp. virginiana (14)
Carpinus cordata (9)
Carpinus fangiana (6)
Carpinus henryana var. simplicidentata (3)
Carpinus japonica (11)
Carpinus orientalis (1)
Carpinus turczaninovii (2)
Carpobrotus acinaciformis (6)
Carpobrotus chilensis (82)
Carpobrotus edulis (101)
Carpobrotus rossii (3)
Carpobrotus sp. (2)
Carpobrotus virescens (2)
Carpodetus serratus (2)
Carpomitra luxurians (1)
Carpopeltis bushiae (2)
Carpoxylon macrospermum (2)
Carrichtera annua (1)
Carsonia sparsifolia (12)
Carterella alexanderae (3)
Carthamus creticus (14)
Carthamus lanatus (17)
Carthamus leucocaulos (11)
Carthamus tinctorius (26)
Carum carvi (2)
Carya (1)
Carya cordiformis (11)
Carya floridana (1)
Carya glabra (1)
Carya illinoinensis (21)
Carya minima (1)
Carya ovata (20)
Carya ovata var. mexicana (2)
Carya palmeri (10)
Carya texana (1)
Carya tomentosa (1)
Caryocar brasiliense (1)
Caryopteris divaricata (2)
Caryopteris incana (1)
Caryopteris x clandonensis (1)
Caryota gigas (5)
Caryota maxima (1)
Caryota mitis (3)
Casaurina cunninghamiana (5)
Cascabela thevetia (11)
Cascadia nuttallii (17)
Cascara californica (1)
Casearia arborea (18)
Casearia melliodora (10)
Casilleja affinis ssp. affinis (1)
Casilleja chromosa (1)
Casimiroa edulis (22)
Cassia abbreviata (16)
Cassia artemisioides (6)
Cassia atomaria (1)
Cassia biflora (1)
Cassia didymobotrya (13)
Cassia emarginata (8)
Cassia fasciculata (7)
Cassia fistula (8)
Cassia fistulosa (1)
Cassia helmsii (3)
Cassia javanica (8)
Cassia leptophylla (15)
Cassia lindheimeriana (1)
Cassia picta (1)
Cassine peragua ssp. peragua (2)
Cassiope lycopodioides (3)
Cassiope mertensiana (67)
Cassiope mertensiana var. mertensiana (1)
Cassiope selaginoides (1)
Cassiope tetragona (2)
Cassiope wardii (1)
Cassytha filiformis (3)
Castanea (1)
Castanea dentata (53)
Castanea pumila (4)
Castanea sativa (24)
Castanea sp. (2)
Castanopsis chrysophylla (3)
Castanopsis peninsularis (1)
Castanopsis sempervirens (11)
Castanopsis sp. (3)
Castanospermum australe (2)
Castela emoryi (140)
Castela peninsularis (28)
Castilla elastica (2)
Castilla elastica ssp. elastica (1)
Castillega stenophylla (1)
Castilleja affinis (64)
Castilleja affinis ssp. affinis (98)
Castilleja affinis ssp. litoralis (23)
Castilleja affinis ssp. neglecta (39)
Castilleja affinis var. neglecta (3)
Castilleja ambigua (47)
Castilleja ambigua ssp. ambigua (57)
Castilleja ambigua ssp. humboldtiensis (17)
Castilleja ambigua ssp. insalutata (5)
Castilleja ambigua ssp. meadii (3)
Castilleja ambigua var. ambigua (1)
Castilleja ambigua var. heckardii (10)
Castilleja angustifolia (16)
Castilleja angustifolia var. dubia (13)
Castilleja angustifolia var. flavescens (7)
Castilleja applegatei (76)
Castilleja applegatei ssp. applegatei (10)
Castilleja applegatei ssp. disticha (19)
Castilleja applegatei ssp. martinii (91)
Castilleja applegatei ssp. pallida (24)
Castilleja applegatei ssp. pinetorum (75)
Castilleja applegatei var. pinetorum (2)
Castilleja applegatei_x_pilosa (2)
Castilleja arachnoidea (96)
Castilleja arvensis (3)
Castilleja attenuata (84)
Castilleja augustifolia (1)
Castilleja brevilobata (13)
Castilleja brevistyla (23)
Castilleja campestris (8)
Castilleja campestris ssp. campestris (23)
Castilleja campestris ssp. succulenta (24)
Castilleja chlorosceptron (3)
Castilleja chlorotica (1)
Castilleja christii (4)
Castilleja chromosa (162)
Castilleja chrysantha (1)
Castilleja cinerea (59)
Castilleja coccinea (11)
Castilleja cryptantha (1)
Castilleja cusickii (34)
Castilleja densiflora (37)
Castilleja densiflora ssp. densiflora (38)
Castilleja densiflora ssp. gracilis (43)
Castilleja densiflora ssp. obispoensis (27)
Castilleja elata (1)
Castilleja elegans (4)
Castilleja exserta (151)
Castilleja exserta ssp. exserta (211)
Castilleja exserta ssp. exserta; (1)
Castilleja exserta ssp. latifolia (73)
Castilleja exserta ssp. venusta (32)
Castilleja fissifolia (1)
Castilleja flava (6)
Castilleja flava var. flava (1)
Castilleja foliolosa (166)
Castilleja gleasoni (21)
Castilleja grisea (13)
Castilleja hispida (4)
Castilleja hispida ssp. brevilobata (17)
Castilleja hololeuca (28)
Castilleja indivisa (15)
Castilleja integra (19)
Castilleja lacera (65)
Castilleja lanata (14)
Castilleja lanata ssp. hololeuca (1)
Castilleja lasiorhyncha (31)
Castilleja lassenensis (12)
Castilleja latifolia (74)
Castilleja lemmonii (85)
Castilleja levisecta (27)
Castilleja linariifolia (143)
Castilleja lineariloba (41)
Castilleja martinii var. clokeyi (6)
Castilleja mendocinensis (75)
Castilleja miniata (82)
Castilleja miniata ssp. elata (20)
Castilleja miniata ssp. miniata (98)
Castilleja minor (5)
Castilleja minor ssp. minor (13)
Castilleja minor ssp. spiralis (52)
Castilleja minor ssp. stenantha (2)
Castilleja minor var. exilis (4)
Castilleja mollis (5)
Castilleja montigena (43)
Castilleja nana (138)
Castilleja nelsonii (3)
Castilleja nervata (9)
Castilleja nivea (3)
Castilleja occidentalis (21)
Castilleja ortegae (6)
Castilleja pallescens var. pallescens (2)
Castilleja parviflora (10)
Castilleja parviflora var. albida (2)
Castilleja parviflora var. olympica (4)
Castilleja parviflora var. oreopola (10)
Castilleja patriotica (19)
Castilleja peckiana (6)
Castilleja peirsonii (17)
Castilleja pilosa (78)
Castilleja pilosa var. pilosa (3)
Castilleja pilosa var. steenensis (6)
Castilleja plagiotoma (35)
Castilleja praeterita (1)
Castilleja pruinosa (36)
Castilleja puberula (5)
Castilleja pulchella (7)
Castilleja purpurascens (4)
Castilleja revealii (20)
Castilleja rhexifolia (21)
Castilleja rhexiifolia (19)
Castilleja rhizomata (10)
Castilleja rubicundula ssp. lithospermoides (41)
Castilleja rubicundula ssp. rubicundula (20)
Castilleja rubida (1)
Castilleja rupicola (3)
Castilleja salsuginosa (1)
Castilleja scabrida (7)
Castilleja scabrida ssp. scabrida (1)
Castilleja schizotricha (24)
Castilleja septentrionalis (11)
Castilleja sessiflora (1)
Castilleja sessiliflora (36)
Castilleja Sp (1)
Castilleja sp. (31)
Castilleja stenophylla (17)
Castilleja subinclusa (2)
Castilleja subinclusa ssp franciscana (2)
Castilleja subinclusa ssp. franciscana (40)
Castilleja subinclusa ssp. subinclusa (46)
Castilleja sulphurea (13)
Castilleja tenuiflora (23)
Castilleja tenuifolia (3)
Castilleja tenuis (78)
Castilleja thompsonii (14)
Castilleja uliginosa (5)
Castilleja unalaschcensis (5)
Castilleja unalaschensis (1)
Castilleja victoriae (3)
Castilleja viscidula (1)
Castilleja wightii (78)
Castilleja xanthotricha (3)
Casuarina cunninghamiana (13)
Casuarina equisetifolia (33)
Casuarina obesa (4)
Casuarina torulosa (2)
Catalpa bignonioides (15)
Catalpa bungei (1)
Catalpa fargesii (4)
Catalpa speciosa (41)
Catalpa x-tashkentensis (4)
Catanache caerulea (1)
Catananche caerulea (13)
Catapodium marinum (1)
Catasetum luridum (20)
Catasetum macrocarpum (22)
Catasetum maculatum (2)
Catha edulis (10)
Catharanthus rosea (2)
Catharanthus rosea var. (1)
Catharanthus roseus (29)
Cathaya argyrophylla (2)
Catopsis berteroniana (9)
Cattleya aclandiae (1)
Cattleya bicolor (1)
Cattleya bowringiana (2)
Cattleya forbesii (1)
Cattleya gaskelliana var. alba (1)
Cattleya granulosa (23)
Cattleya guttata (2)
Cattleya intermedia var. aquinii (1)
Cattleya intermedia var. aquinii alba (1)
Cattleya labiata var. coerulea (1)
Cattleya labiata var. purpureo-estriata (1)
Cattleya labiata var. semi-alba (1)
Cattleya leopoldii (5)
Cattleya loddigesii (3)
Cattleya nobilior var. amaliae (2)
Cattleya schofieldiana (1)
Cattleya skinneri (3)
Cattleya trianaei (1)
Cattleya velutina (1)
Cattleya walkeriana (2)
Cattleya warneri (1)
Cattleya warneri var. concolor (2)
Caucaea nubigena (1)
Caucaea phalaenopsis (1)
Caulanthus amplexicaulis (24)
Caulanthus amplexicaulis var. barbarae (11)
Caulanthus anceps (45)
Caulanthus californicus (106)
Caulanthus cooperi (40)
Caulanthus coulteri (100)
Caulanthus crassicaulis (38)
Caulanthus crassicaulis ssp. crassicaulis (3)
Caulanthus crassicaulis var. crassicaulis (31)
Caulanthus crassicaulis var. glaber (7)
Caulanthus flavescens (31)
Caulanthus glaucus (36)
Caulanthus hallii (22)
Caulanthus heterophyllus (43)
Caulanthus inflatus (146)
Caulanthus lasiophyllus (139)
Caulanthus lemmonii (30)
Caulanthus major (40)
Caulanthus major var. nevadensis (2)
Caulanthus pilosus (38)
Caulanthus simulans (29)
Caulantus lasiophyllus (6)
Caulerpa cupressoides var. lycopodium (2)
Caulerpa peltata (1)
Caulerpa pickeringii (4)
Caulerpa racemosa (2)
Caulerpa racemosa f. peltata (5)
Caulerpa racemosa var. peltata (14)
Caulerpa serrulata (8)
Caulerpa sertularioides (5)
Caulerpa taxifolia (2)
Caulerpa verticillata (13)
Caulerpa webbiana (17)
Caulophyllum thalictroides (38)
Cautleya spicata (3)
Cavendishia bracteata (8)
Ceanothus (1)
Ceanothus 'Ray Hartman' (1)
Ceanothus americanus (15)
Ceanothus arboreus (20)
Ceanothus arcuatus (27)
Ceanothus buxifolius (11)
Ceanothus caeruleus (1)
Ceanothus confusus (22)
Ceanothus cordulatus (140)
Ceanothus cordulatus cf. (1)
Ceanothus crassifolium (1)
Ceanothus crassifolius (65)
Ceanothus crassifolius var. crassifolius (72)
Ceanothus cuneatus (126)
Ceanothus cuneatus var. cuneatus (118)
Ceanothus cuneatus var. dubius (2)
Ceanothus cuneatus var. fascicularis (27)
Ceanothus cuneatus var. ramulosa (1)
Ceanothus cuneatus var. ramulosus (25)
Ceanothus cyaneus (13)
Ceanothus decornutus (12)
Ceanothus dentatus (8)
Ceanothus depressus (13)
Ceanothus divaricatus (2)
Ceanothus divaricatus cf. (1)
Ceanothus divergens (30)
Ceanothus diversifolius (36)
Ceanothus fendleri (14)
Ceanothus ferrisiae (30)
Ceanothus foliosus (14)
Ceanothus foliosus var. foliosus (32)
Ceanothus foliosus var. medius (6)
Ceanothus foliosus var. vineatus (12)
Ceanothus fresnensis (33)
Ceanothus gloriosus (5)
Ceanothus gloriosus var. exaltatus (56)
Ceanothus gloriosus var. gloriosus (12)
Ceanothus gloriosus var. porrectus (8)
Ceanothus greggii (23)
Ceanothus greggii var. vestitus (3)
Ceanothus griseus (2)
Ceanothus hearstiorum (9)
Ceanothus impresses var. nipomensis (4)
Ceanothus impressus (13)
Ceanothus impressus var. impressus (1)
Ceanothus impressus var. nipomensis (13)
Ceanothus impressus x papillosus roweanus (5)
Ceanothus incanus (15)
Ceanothus integerrimus (105)
Ceanothus integerrimus var. integerrimus (3)
Ceanothus integerrimus var. macrostachyus (1)
Ceanothus integerrimus var. macrothyrsus (48)
Ceanothus jepsonii (62)
Ceanothus jepsonii var. albiflorus (2)
Ceanothus lemmonii (56)
Ceanothus leucodermis (135)
Ceanothus maritimus (32)
Ceanothus martinii (4)
Ceanothus masonii (32)
Ceanothus megacarpus (32)
Ceanothus megacarpus var. insularis (23)
Ceanothus megacarpus var. megacarpus (3)
Ceanothus ochracea (2)
Ceanothus ochraceus (6)
Ceanothus oliganthus (44)
Ceanothus oliganthus var. oliganthus (11)
Ceanothus oliganthus var. orcuttii (10)
Ceanothus oliganthus var. sorediatus (56)
Ceanothus oliganthus var. sorediatus (2)
Ceanothus ophiochilus (5)
Ceanothus otayensis (18)
Ceanothus palmeri (24)
Ceanothus palmeri cf. (1)
Ceanothus papillosus (50)
Ceanothus parryi (11)
Ceanothus parvifolius (42)
Ceanothus pauciflorus (5)
Ceanothus pendletonensis (16)
Ceanothus perplexans (50)
Ceanothus perplexans cf. (1)
Ceanothus perplexans or Ceanothus vestitus (2)
Ceanothus pilosula (1)
Ceanothus pinetorum (22)
Ceanothus prostratus (90)
Ceanothus prostratus var. prostratus (22)
Ceanothus pumilus (27)
Ceanothus pumilus-x-cuneatus (2)
Ceanothus purpureus (38)
Ceanothus ramulosus (7)
Ceanothus rigidus (61)
Ceanothus roderickii (49)
Ceanothus sanguineus (8)
Ceanothus sanguineus cf. (1)
Ceanothus sonomensis (30)
Ceanothus sorediatus (1)
Ceanothus sp. (22)
Ceanothus spinosus (35)
Ceanothus thrysiflorus var. thrysiflorus (1)
Ceanothus thyrsiflorus (88)
Ceanothus thyrsiflorus var. griseus (19)
Ceanothus thyrsiflorus var. thyrsiflorus (49)
Ceanothus tomentosus (79)
Ceanothus tomentosus cf. (1)
Ceanothus tomentosus var. olivaceus (1)
Ceanothus velutinus (85)
Ceanothus velutinus var. hookeri (3)
Ceanothus velutinus var. velutinus (1)
Ceanothus verrucosus (54)
Ceanothus vestitus (19)
Ceanothus X lorenzenii (6)
Ceanothus x pallidus (1)
Cecropia glaziovii (11)
Cecropia obtusifolia (7)
Cecropia peltata (1)
Cecropia schreberiana (1)
Cecropia sp. (3)
Cedrela odorata (9)
Cedrela salvadorensis (3)
Cedronella canariensis (1)
Cedrus atlantica (56)
Cedrus atlantica var. atlantica (1)
Cedrus atlantica var. glauca (2)
Cedrus brevifolia (10)
Cedrus deodara (69)
Cedrus libani var. stenocoma (7)
Ceiba acuminata (3)
Ceiba aesculifolia (7)
Ceiba insignis (13)
Ceiba pentandra (13)
Ceiba speciosa (23)
Ceiba speciose (1)
Celastrus auriculatus (1)
Celastrus scandens (13)
Celastrus stylosus (1)
Celmisia semicordata (2)
Celosia argentea (5)
Celosia argentea var. cristata (6)
Celosia argentea var. spicata (2)
Celosia cristata (4)

Celosia cristata var. cristata (2)
Celosia cv. Fresh Look Gold (2)
Celosia floribunda (13)
Celosia plumosa (1)
Celosia spicata (1)
Celtis africana (4)
Celtis australis (21)
Celtis bungeana (1)
Celtis ehrenbergiana (21)
Celtis iguanaea (5)
Celtis laevigata (1)
Celtis laevigata var. reticulata (1)
Celtis occidentalis (15)
Celtis pallida (8)
Celtis reticulata (48)
Celtis sinensis (13)
Cenchrus caliculatus (4)
Cenchrus ciliaris (7)
Cenchrus echinatus (17)
Cenchrus incertus (8)
Cenchrus longispinus (17)
Cenchrus palmeri (24)
Cenchrus spinifex (10)
Cenolophium denudatum (3)
Centaurea alpina (5)
Centaurea americana (10)
Centaurea arbutifolia (4)
Centaurea benedicta (22)
Centaurea biebersteinii (9)
Centaurea calcitrapa (91)
Centaurea calcitrapa hybrid (1)
Centaurea carniolica (5)
Centaurea cineraria (3)
Centaurea crocodylium (9)
Centaurea cyanus (57)
Centaurea cyanus cv. (2)
Centaurea cyanus var. alba (3)
Centaurea dalmatica (8)
Centaurea dealbata (4)
Centaurea debeauxii ssp. thuillieri (1)
Centaurea deusta (6)
Centaurea dichroantha (6)
Centaurea diffusa (33)
Centaurea diluta (35)
Centaurea gymnocarpa (7)
Centaurea haynaldii ssp. julica (6)
Centaurea iberica (11)
Centaurea iberica x c. calcitrapa (2)
Centaurea jacea (7)
Centaurea jacea nothossp. pratensis (6)
Centaurea jacea ssp. jacea (6)
Centaurea jacea ssp. nigra (1)
Centaurea junoniana (2)
Centaurea macrocephala (5)
Centaurea maculata (2)
Centaurea maculosa (4)
Centaurea melitensis (113)
Centaurea montana (24)
Centaurea nicaeensis (1)
Centaurea nigra (7)
Centaurea nigrescens (3)
Centaurea pannonica (8)
Centaurea pseudophrygia (1)
Centaurea pumilio (7)
Centaurea rothrockii (6)
Centaurea rupestris (8)
Centaurea scabiosa (8)
Centaurea scabiosa ssp. fritschii (8)
Centaurea scabiosa ssp. scabiosa (2)
Centaurea simplicicaulis (2)
Centaurea solstitialis (124)
Centaurea solstitials (2)
Centaurea solstitiialis (7)
Centaurea sp. (10)
Centaurea stoebe ssp. micranthos (59)
Centaurea stoebe ssp. stoebe (4)
Centaurea subtilis (2)
Centaurea sulphurea (9)
Centaurea triumfettii ssp. adscendens (4)
Centaurea virgata ssp. squarrosa (10)
Centaurea Xpratensis (1)
Centaurea ×moncktonii (6)
Centaurea ×pouzinii (3)
Centaurea ×pratensis (2)
Centaurium cachanlahuen (2)
Centaurium calycosum (6)
Centaurium erythraea (22)
Centaurium erythraea ssp. erythraea (1)
Centaurium nudicaule (3)
Centaurium pulchellum (9)
Centaurium tenuiflorum (14)
Centaurium tenuiflorum sensu lato (1)
Centaurium tenuifolium (1)
Centaurium venusta (2)
Centaurium venustum (5)
Centaurium xtenuiflorum (2)
Centella asiatica (1)
Centeurea cyanus (2)
Centotheca lappacea (2)
Centradenia floribunda (1)
Centranthus ruber (54)
Centratherum punctatum (6)
Centratherum punctatum ssp. punctatum (1)
Centroceras clavulatum (3)
Centromadia fitchii (123)
Centromadia parryi ssp. australis (28)
Centromadia parryi ssp. congdonii (55)
Centromadia parryi ssp. parryi (45)
Centromadia parryi ssp. rudis (29)
Centromadia pungens (8)
Centromadia pungens ssp. laevis (14)
Centromadia pungens ssp. pungens (73)
Centromedia pungens ssp. laevis (6)
Centropogon baezanus (1)
Centrosema molle (1)
Centrosema virginiana vel aff. (1)
Centrosema virginianum (4)
Centrostegia thurberi (73)
Cephalanthera austiniae (125)
Cephalanthera damasonium (19)
Cephalanthera longifolia (34)
Cephalanthera rubra (18)
Cephalanthus occidentalis (85)
Cephalanthus occidentalis var. californicus (1)
Cephalaria alpina (2)
Cephalaria leucantha (9)
Cephalocereus columna-trajani (1)
Cephalocereus totolapensis (2)
Cephalophyllum anemoniflorum (2)
Cephalophyllum stayneri (3)
Cephalostachyum viguieri (3)
Cephalotaxus drupacea (3)
Cephalotaxus fortunii (5)
Cephalotaxus harringtonia (3)
Cephalotaxus harringtonia var. koreana (3)
Cephalotaxus harringtonii (5)
Cephalotus follicularis (42)
Cephalozia bicuspidata (3)
Cephaloziella (10)
Cephaloziella spinigera (2)
Ceradenia arthrothrix (1)
Ceradenia asthenophylla (1)
Ceradenia aulaeifolia (1)
Ceradenia dendrodoxa (1)
Ceradenia microcystis (1)
Ceradenia phloiocharis (1)
Ceradenia pilipecten (1)
Ceradenia tristis (1)
Ceramium aduncum (12)
Ceramium templetonii (1)
Ceraria namaquensis (3)
Ceraria pygmaea (2)
Cerastium alpinum ssp. lanatum (1)
Cerastium arvense (44)
Cerastium arvense ssp. strictum (41)
Cerastium beeringianum (16)
Cerastium beeringianum ssp. earlei (6)
Cerastium carinthiacum (5)
Cerastium carinthiacum ssp. carinthiacum (6)
Cerastium fontanum ssp. vulgare (31)
Cerastium glomeratum (65)
Cerastium latifolium-agg (5)
Cerastium nutans (5)
Cerastium semidecandrum (4)
Cerastium sp. (5)
Cerastium strictum (14)
Cerastium subtriflorum (8)
Cerastium tomentosum (8)
Cerastium viride (13)
Ceratocapnos claviculata (1)
Ceratocephala testiculata (5)
Ceratodon conicus (9)
Ceratodon purpureus (15)
Ceratodon stenocarpus (9)
Ceratonia siliqua (52)
Ceratophyllum demersum (12)
Ceratophyllum dumosum (5)
Ceratostigma plumbaginoides (7)
Ceratostigma willmottianum (3)
Ceratotheca triloba (9)
Ceratozamia mexicana (1)
Cerbera manghas (2)
Cerbera odollam (5)
Cercidiphyllum crenatum (1)
Cercidiphyllum japonicum (13)
Cercidiphyllum japonicum ssp. sinense (1)
Cercidiphyllum japonicum var. sinense (5)
Cercidium floridum (1)
Cercidium microphyllum (4)
Cercidium praecox (4)
Cercidium sp. (11)
Cercis canadensis (41)
Cercis canadensis var. mexicana (1)
Cercis canadensis var. texensis (45)
Cercis chinensis (4)
Cercis chingii (8)
Cercis gigantea (2)
Cercis mexicana (2)
Cercis occidentalis (138)
Cercis occidentalis var. orbiculata (2)
Cercis siliquastrum (17)
Cercis sp. (4)
Cercis texensis (1)
Cercocarpos montanus (1)
Cercocarpus (1)
Cercocarpus betulaefolius (4)
Cercocarpus betuloides (81)
Cercocarpus betuloides var. betuloides (64)
Cercocarpus betuloides var. blancheae (11)
Cercocarpus betuloides var. macrourus (12)
Cercocarpus intricatus (6)
Cercocarpus ledifolius (86)
Cercocarpus ledifolius var. intercedens (19)
Cercocarpus ledifolius var. intermontanus (40)
Cercocarpus ledifolius var. intricatus (20)
Cercocarpus ledifolius var. ledifolius (13)
Cercocarpus macrourus (1)
Cercocarpus minutiflorus (37)
Cercocarpus montanus (23)
Cercocarpus montanus var. glaber (7)
Cercocarpus paucidentatus (3)
Cercocarpus rotundifolius (1)
Cercocarpus sp. (3)
Cercocarpus traskiae (9)
Cereus aethiops (3)
Cereus childsi (1)
Cereus dayamii (1)
Cereus forbesii (2)
Cereus grandicostatus (2)
Cereus hildmannianus (4)
Cereus jamacaru (1)
Cereus peruvianus (4)
Cereus repandum (1)
Cereus repandus (4)
Cereus undatus (1)
Cerinthe major (6)
Cerinthe major ssp. purpurascens (6)
Ceropegia ampliata (2)
Ceropegia fusca (3)
Ceropegia llinearis ssp. woodii (1)
Ceropegia woodii (4)
Ceroxylon parvum (3)
Cestrum aurantiacum (3)
Cestrum auriculatum (1)
Cestrum coccineum (1)
Cestrum diurnum (1)
Cestrum elegans (3)
Cestrum fasciculatum (8)
Cestrum guatemalensis (5)
Cestrum hybrid (2)
Cestrum nocturnum (4)
Cestrum parqui (13)
Cestrum parqui 'Cretan Purple' (2)
Ceterach officinarum (2)
Ceterach officinarum ssp. bivalens (6)
Cevallia sinuata (7)
Chaenactic glabriuscula var. heterocarpha (1)
Chaenactis alpigena (44)
Chaenactis alpina (2)
Chaenactis artemisiifolia (39)
Chaenactis carphoclina var. carphoclina (1)
Chaenactis carphoclinia (40)
Chaenactis carphoclinia var. carphoclinia (66)
Chaenactis carphoclinia var. peirsonii (16)
Chaenactis carphocliniia var. carphoclinia (1)
Chaenactis cusickii (3)
Chaenactis douglasii (38)
Chaenactis douglasii var. alpina (21)
Chaenactis douglasii var. douglasii (111)
Chaenactis fremontii (109)
Chaenactis fremontii_x_glabriuscula (9)
Chaenactis glabriuscula (55)
Chaenactis glabriuscula var. glabriuscula (51)
Chaenactis glabriuscula var. heterocarpha (34)
Chaenactis glabriuscula var. hetrerocarpha (2)
Chaenactis glabriuscula var. lanosa (30)
Chaenactis glabriuscula var. megacephala (34)
Chaenactis glabriuscula var. orcuttiana (60)
Chaenactis glabriuscula var. orcuttiana_intergrade (15)
Chaenactis lacera (5)
Chaenactis lanosa (1)
Chaenactis macrantha (36)
Chaenactis nevadensis (44)
Chaenactis parishii (12)
Chaenactis santolinoides (53)
Chaenactis scabriuscula (2)
Chaenactis sp. (1)
Chaenactis stevioides (103)
Chaenactis stevioides var. stevioides (1)
Chaenactis suffrutescens (61)
Chaenactis thompsonii (4)
Chaenactis xantiana (65)
Chaenomeles japonica (10)
Chaenomeles lagenaria (1)
Chaenomeles sp. (9)
Chaenomeles speciosa (2)
Chaenomeles ×superba (4)
Chaenorhinum minus (7)
Chaenorhinum origanifolium (2)
Chaenostoma sp. (1)
Chaerophyllum hirsutum (12)
Chaerophyllum temulum (2)
Chaerophyllum villarsi (4)
Chaetachme aristata (4)
Chaetadelpha wheeleri (34)
Chaetanthera chilensis (1)
Chaetanthera flabellata (4)
Chaetanthera frayjorgensis (2)
Chaetanthera glabrata (3)
Chaetanthera linearis (4)
Chaetanthera philippii (13)
Chaetocarpus echinocarpus (30)
Chaetomorpha basiretrorsa (1)
Chaetomorpha brachygona var. crassipellita (2)
Chaetomorpha linum (8)
Chaetomorpha sp. (1)
Chaetopappa asteroides var. asteroides (3)
Chaetopappa ericoides (95)
Chamaebatia australis (43)
Chamaebatia foliolosa (91)
Chamaebatiaria millefolium (95)
Chamaebotrys boergesenii (5)
Chamaechaenactis scaposa (4)
Chamaecrista fasciculata (21)
Chamaecrista fasciculata var. fasciculata (24)
Chamaecrista flexuosa (10)
Chamaecrista lineata var. keyensis (1)
Chamaecrista nictitans (7)
Chamaecrista rotundifolia var. rotundifolia (11)
Chamaecrista serpens (3)
Chamaecyparis formosensis (6)
Chamaecyparis lawsoniana (46)
Chamaecyparis nootkatensis (19)
Chamaecyparis obtusa (30)
Chamaecyparis obtusa var. 'nana gracilis' (1)
Chamaecyparis pisifera (16)
Chamaecyparis thyoides (4)
Chamaecytisus hirsutus (9)
Chamaecytisus purpureus (4)
Chamaedaphne calyculata (14)
Chamaedaphne calyculata var. angustifolia (4)
Chamaedorea metallica (4)
Chamaedorea tepejilote (2)
Chamaelirium luteum (3)
Chamaelobivia sp. (3)
Chamaemelum fuscatum (5)
Chamaemelum nobile (2)
Chamaenerion angustifolium (38)
Chamaenerion latifolium (3)
Chamaerhodos erecta (5)
Chamaerops humilis (20)
Chamaerops humilis var. argentea (5)
Chamaerops martiana (4)
Chamaesaracha coniodes (13)
Chamaesaracha crenata (7)
Chamaesaracha nana (70)
Chamaesaracha sordida (26)
Chamaesaracha villosa (21)
Chamaesarcha sorida (1)
Chamaespartium sagittale (6)
Chamaesyce acuta (12)
Chamaesyce albomarginata (27)
Chamaesyce amplexicaulis (4)
Chamaesyce arizonica (2)
Chamaesyce canescens (1)
Chamaesyce canescens ssp. canescens (1)
Chamaesyce capitellata (15)
Chamaesyce chaetocalyx (1)
Chamaesyce cinerascens (16)
Chamaesyce dioica (3)
Chamaesyce fendleri (15)
Chamaesyce garberi (1)
Chamaesyce hooveri (5)
Chamaesyce lata (5)
Chamaesyce leucophylla (10)
Chamaesyce maculata (13)
Chamaesyce melanadenia (12)
Chamaesyce micromera (6)
Chamaesyce ocellata (1)
Chamaesyce ocellata ssp. arenicola (3)
Chamaesyce ocellata ssp. ocellata (4)
Chamaesyce parryi (16)
Chamaesyce polycarpa (7)
Chamaesyce polycarpa var. polycarpa (2)
Chamaesyce prostrata (15)
Chamaesyce revoluta (2)
Chamaesyce serpyllifolia (4)
Chamaesyce serpyllifolia ssp. hirtula (1)
Chamaesyce serpyllifolia ssp. serpyllifolia (1)
Chamaesyce serrula (2)
Chamaesyce setiloba (16)
Chamaesyce sp. (6)
Chamaesyce strictospora (6)
Chamaesyce vermiculata (5)
Chambeyronia macrocarpa (3)
Chamelaucium uncinatum (6)
Chamerion angustifolium (52)
Chamerion angustifolium ssp. angustifolium (30)
Chamerion angustifolium ssp. circumvagum (94)
Chamerion latifolium (35)
Chamomilla recutita (10)
Chamomilla suaveolens (4)
Chamorchis alpina (9)
Champia compressa (1)
Champia vieillardii (11)
Chanekia misantlae (1)
Chaptalia albicans (3)
Chaptalia nutans (2)
Chaptalia texana (6)
Chara hornemannii (4)
Chara sp. (1)
Chara zeylanica (4)
Charpentiera obovata (6)
Charybdis pancration (1)
Chascolytrum subaristatum (2)
Chasmanthe bicolor (17)
Chasmanthe floribunda (19)
Chasmanthium latifolium (3)
Cheilanthes bolborrhiza (1)
Cheilanthes bonariensis (5)
Cheilanthes brandegeei (1)
Cheilanthes clevelandii (13)
Cheilanthes cooperae (3)
Cheilanthes covillei (31)
Cheilanthes eatonii (2)
Cheilanthes eckloniana (2)
Cheilanthes feei (4)
Cheilanthes fendleri (1)
Cheilanthes fractifera (1)
Cheilanthes glutinosa (1)
Cheilanthes gracillima (40)
Cheilanthes intertexta (4)
Cheilanthes lendigera (2)
Cheilanthes lindheimeri (3)
Cheilanthes maderensis (1)
Cheilanthes mexicana (2)
Cheilanthes multifida (1)
Cheilanthes mysurensis (2)
Cheilanthes newberryi (14)
Cheilanthes nudiuscula (9)
Cheilanthes parryi (44)
Cheilanthes pruinata (1)
Cheilanthes sinuata (1)
Cheilanthes sp. (2)
Cheilanthes tripinnata (1)
Cheilanthes viscida (17)
Cheilanthes wootonii (9)
Cheilocostus speciosus (1)
Cheilosporum acutilobum (1)
Cheiranthus allionii (2)
Cheiridopsis candidissima (2)
Cheiridopsis denticulata (2)
Cheiridopsis inspersa (1)
Cheiridopsis peculiaris (2)
Cheiridopsis robusta (1)
Cheiridopsis sp. (1)
Cheiridopsis verrucosa (1)
Cheirodendron platyphyllum (4)
Cheirodendron trigynum ssp. helleri (3)
Cheirolophus burchardii (7)
Chelidonium majus (24)
Chelonanthus purpurascens (12)
Chelone glabra (29)
Chelone obliqua (4)
Chenomeles speciosa (3)
Chenopdium murale (1)
Chenopodium album (58)
Chenopodium atrovirens (25)
Chenopodium berlandieri (18)
Chenopodium berlandieri var. sinuatum (1)
Chenopodium bonus-henricus (5)
Chenopodium botrys (5)
Chenopodium californicum (63)
Chenopodium capitatum (5)
Chenopodium capitatum var. capitatum (2)
Chenopodium capitatum var. parvicapitatum (6)
Chenopodium chenopodioides (5)
Chenopodium desiccatum (5)
Chenopodium foliosum (2)
Chenopodium fremontii (17)
Chenopodium glaucum (6)
Chenopodium incanum var. occidentale (17)
Chenopodium incisum (2)
Chenopodium leptophyllum (10)
Chenopodium littoreum (26)
Chenopodium macrospermum (30)
Chenopodium murale (58)
Chenopodium nevadense (11)
Chenopodium nitens (5)
Chenopodium oahuense (9)
Chenopodium opulifolium (7)
Chenopodium quinoa (9)
Chenopodium simplex (14)
Chenopodium sp. (aff. pratericola) (3)
Chenopodium urbicum (4)
Chenopodium vulvaria (24)
Chiliotrichum diffusum (8)
Chilopsis linearis (79)
Chilopsis linearis arcuata (1)
Chilopsis linearis ssp. arcuata (91)
Chilopsis linearis ssp. linearis (10)
Chiloscyphus gemmiparus (1)
Chiloscyphus pallescens (3)
Chiloscyphus polyanthos (6)
Chimaphila maculata (21)
Chimaphila menziesii (90)
Chimaphila umbellata (105)
Chimaphila umbellata ssp. umbellata (5)
Chimaphila umbellata var. acuta (2)
Chimonanthus nitens (2)
Chingia longissima (38)
Chiococca alba (1)
Chionanthus retusus (16)
Chionanthus virginicus (7)
Chionochloa flavicans (1)
Chionochloa rubra (1)
Chionodoxa luciliae (5)
Chionophila jamesii (8)
Chionophila tweedyi (2)
Chiranthodendron pentadactylon (26)
Chiranthofremontia lenzii (7)
Chirita moonii (1)
Chironia baccifera (2)
Chitalpa tashkentensis (6)
Chlamydomonas nivalis (2)
Chloracantha spinosa (16)
Chloracantha spinosa var. spinosa (39)
Chloracantha spinosa var. spinosissima (18)
Chloraea alpina (2)
Chloraea bletioides (1)
Chloraea disoides (1)
Chloraea magellanica (2)
Chloraea multiflora (1)
Chloraea piquichen (4)
Chloranthus japonicus (3)
Chloris cucullata (3)
Chloris gayana (7)
Chloris inflata (2)
Chloris submutica (4)
Chloris truncata (2)
Chloris virgata (25)
Chlorocrambe hastata (4)
Chlorodesmis (2)
Chlorodesmis fastigiata (8)
Chlorogalum angustifolium (18)
Chlorogalum grandiflorum (61)
Chlorogalum parviflorum (6)
Chlorogalum pomeridianum (89)
Chlorogalum pomeridianum ssp. pomeridianum (3)
Chlorogalum pomeridianum var. divaricatum (26)
Chlorogalum pomeridianum var. minus (7)
Chlorogalum pomeridianum var. pomeridianum (81)
Chlorogalum pomeridianum; (2)
Chlorogalum purpureum (1)
Chlorogalum purpureum var. purpureum (5)
Chlorogalum purpureum var. reductum (20)
Chlorogalum sp. (4)
Chloroleucon mangense (10)
Chlorophytum bowkeri (1)
Chlorophytum comosum (7)
Chlorophytum somaliense (1)
Chlorophytum undulatum (2)
Chloropyron maritimum (9)
Chloropyron maritimum ssp. canescens (21)
Chloropyron maritimum ssp. maritimum (48)
Chloropyron maritimum ssp. palustre (42)
Chloropyron maritimum ssp. palusture (7)
Chloropyron maritimus (1)
Chloropyron matitimum ssp. canescens (1)
Chloropyron molle ssp. hispidum (65)
Chloropyron molle ssp. molle (55)
Chloropyron palmatum (48)
Chloropyron palmatus (2)
Chloropyron tecopense (16)
Chnoospora implexa (4)
Chnoospora minima (3)
Choisya dumosa (4)
Choisya sp. (1)
Choisya ternata (15)
Chomelia tenuiflora (8)
Chondracanthus canaliculatus (1)
Chondracanthus exasperatus (8)
Chondracanthus exasperatus (formerly gigartina exasperata) (1)
Chondracanthus intermedius (1)
Chondria (3)
Chondria arcuata (18)
Chondria dangeardii (8)
Chondria flexicaulis (1)
Chondria repens cf (5)
Chondria simpliciuscula (13)
Chondrilla juncea (67)
Chondrophycus (7)
Chondrophycus palisadus (2)
Chondrophycus succisus (7)
Chondrophycus succisus cf (2)
Chondrorhyncha viridisepala (3)
Chondrosum gracile (3)
Chondrus albemarlensis (1)
Chondrus hancockii (1)
Chonemorpha fragrans (2)
Chonemorpha penangensis (2)
Chorilaena quercefolia (2)
Chorilaena quercifolia (1)
Chorisia insignis (2)
Chorisia speciosa (4)
Chorisis repens (6)
Chorispora tenella (44)
Chorizanthe angustifolia (11)
Chorizanthe aphanantha (8)
Chorizanthe biloba var. biloba (12)
Chorizanthe biloba var. immemora (15)
Chorizanthe blakleyi (10)
Chorizanthe brevicornu (39)
Chorizanthe brevicornu var. brevicornu (41)
Chorizanthe brevicornu var. spathulata (13)
Chorizanthe breweri (26)
Chorizanthe corrugata (25)
Chorizanthe cuspidata (19)
Chorizanthe cuspidata var. cuspidata (32)
Chorizanthe cuspidata var. villosa (38)
Chorizanthe diffusa (35)
Chorizanthe douglasii (69)
Chorizanthe eastwoodiae (45)
Chorizanthe fimbriata (10)
Chorizanthe fimbriata var. fimbriata (59)
Chorizanthe fimbriata var. laciniata (12)
Chorizanthe howellii (58)
Chorizanthe leptotheca (26)
Chorizanthe membranacae (1)
Chorizanthe membranacea (79)
Chorizanthe minutiflora (18)
Chorizanthe obovata (15)
Chorizanthe orcuttiana (47)
Chorizanthe palmeri (39)
Chorizanthe parryi var. fernandina (38)
Chorizanthe parryi var. parryi (40)
Chorizanthe polygonoides (2)
Chorizanthe polygonoides var. longispina (39)
Chorizanthe polygonoides var. polygonoides (48)
Chorizanthe procumbens (31)
Chorizanthe pungens (10)
Chorizanthe pungens var. hartwegiana (56)
Chorizanthe pungens var. pungens (60)
Chorizanthe rectispina (12)
Chorizanthe rigida (126)
Chorizanthe robusta var. hartwegii (36)
Chorizanthe robusta var. robusta (5)
Chorizanthe sp. (4)
Chorizanthe spinosa (97)
Chorizanthe staticoides (70)
Chorizanthe stellulata (12)
Chorizanthe uniaristata (13)
Chorizanthe valida (53)
Chorizanthe ventricosa (43)
Chorizanthe watsonii (40)
Chorizanthe wheeleri (3)
Chorizanthe xanti (4)
Chorizanthe xanti var. leucotheca (21)
Chorizanthe xanti var. xanti (52)
Chorizema cordatum X chorizema varium (2)
Chortolirion tenuifolium (5)
Chorzanthe polygonoides (3)
Christensonella uncata (1)
Chromolaena ivifolia (3)
Chromolaena odorata (15)
Chromolaena sagittata (5)
Chromolena bigelovii (5)
Chrozophora tinctoria (7)
Chrylismia arenaria (1)
Chrysactinia mexicana (20)
Chrysanthemoides incana (4)
Chrysanthemoides monilifera (3)
Chrysanthemoides monilifera ssp. monilifera (10)
Chrysanthemum arcticum (4)
Chrysanthemum carinatum (4)
Chrysanthemum cinerariifolium (2)
Chrysanthemum coronarium (14)
Chrysanthemum corymbosum (1)
Chrysanthemum frutescens (3)
Chrysanthemum grandiflorum (2)
Chrysanthemum hybrid (1)
Chrysanthemum leucanthemum (2)
Chrysanthemum macrocephallum (1)
Chrysanthemum maximum (4)
Chrysanthemum paludosum (1)
Chrysanthemum parthenium (2)
Chrysanthemum rubellum (3)
Chrysanthemum segetum (9)
Chrysanthemum superba (4)
Chrysanthemum x grandiflorum (2)
Chrysanthemum x morifolium (11)
Chrysanthemum zawadskii (3)
Chrysobalanus icaco (4)
Chrysocephalum apiculatum (12)
Chrysocoma coma-aurea (5)
Chrysolepis chrysophylla (31)
Chrysolepis chrysophylla var. chrysophylla (9)
Chrysolepis chrysophylla var. minor (32)
Chrysolepis sempervirens (88)
Chrysolepis chrysophylla var. chrysophylla (4)
Chrysolina quadrigemina (1)
Chrysoma pauciflosculosa (6)
Chrysophyllum cainito (2)
Chrysophyllum oliviforme (5)
Chrysopogon aciculatus (1)
Chrysopsis gossypina ssp. hyssopifolia (3)
Chrysopsis gossypina var. hyssopifolia (1)
Chrysopsis linearifolia ssp. linearifolia (3)
Chrysopsis mariana (6)
Chrysopsis pilosa (1)
Chrysopsis subulata (3)
Chrysopsis villosa (1)
Chrysosplenium alternifolium (6)
Chrysosplenium americanum (10)
Chrysosplenium glechomifolium (13)
Chrysosplenium pilosum (8)
Chrysosplenium tetrandrum (1)
Chrysothamnus albidus (1)
Chrysothamnus bloomeri (5)
Chrysothamnus depressus (7)
Chrysothamnus greenei (9)
Chrysothamnus humilis (2)
Chrysothamnus nauseosus (11)
Chrysothamnus nauseosus ssp. albicaulis (4)
Chrysothamnus nauseosus ssp. consimilis (2)
Chrysothamnus nauseosus ssp. gnaphalodes (1)
Chrysothamnus nauseosus var. hololeucus (3)
Chrysothamnus nauseosus var. speciosa (1)
Chrysothamnus parryi ssp. parryi (2)
Chrysothamnus pulchellus (1)
Chrysothamnus sp. (9)
Chrysothamnus viscidiflorus (25)
Chrysothamnus viscidiflorus ssp. lanceolatus (3)
Chrysothamnus viscidiflorus ssp. puberulus (24)
Chrysothamnus viscidiflorus ssp. viscidiflorus (42)
Chrysothamnus viscidiflorus ssp.viscidiflorus (1)
Chrysothemis pulchella (2)
Chrysymenia kaernbachii (7)
Chuciraga avellanedae (12)
Chuqiraga jussieui (4)
Chuquiraga erinacea (5)
Chuquiraga oppositifolia (2)
Chuquiragua jussieui (1)
Chusquea pittieri (2)
Chusquea quila (10)
Chusquea sp. (1)
Chylisma claviformis ssp. peirsonii (2)
Chylismia arenaria (41)
Chylismia brevipes (64)
Chylismia brevipes ssp. brevipes (103)
Chylismia brevipes ssp. pallida (1)
Chylismia brevipes ssp. pallidula (11)
Chylismia brevipes; (2)
Chylismia cardiophylla (24)
Chylismia cardiophylla ssp. cardiophylla (36)
Chylismia cardiophylla ssp. robusta (1)
Chylismia claviformis (84)
Chylismia claviformis ssp. aurantiaca (34)
Chylismia claviformis ssp. aurantiacus (1)
Chylismia claviformis ssp. claviformis (74)
Chylismia claviformis ssp. cruciformis (4)
Chylismia claviformis ssp. funerea (13)
Chylismia claviformis ssp. integrior (13)
Chylismia claviformis ssp. lancifolia (21)
Chylismia claviformis ssp. peirsonii (131)
Chylismia claviformis ssp. piersonii (1)
Chylismia claviformis ssp. yumae (4)
Chylismia heterochroma (24)
Chylismia sp. (1)
Chylismia walkeri (2)
Chylismia walkeri ssp. tortilis (29)
Chylismiella pterosperma (11)
Chylsimia brevipes (1)
Cibotium glaucum (9)
Cibotium menziesii (14)
Cicendia quadrangularis (34)
Cicendia triangularis (2)
Cicer arietinum (7)
Cicer canariense (4)
Cicerbita alpina (3)
Cichorium intybus (116)
Cichorium intybus var. foliosum (2)
Ciclospermum leptophyllum (1)
Cicuta bulbifera (10)
Cicuta douglasii (45)
Cicuta maculata (26)
Cicuta maculata var. angustifolia (12)
Cicuta maculata var. bolanderi (6)
Ciliaria austromontana (5)
Cimicifuga elata (5)
Cimicifuga elata var. alpestris (1)
Cimicifuga simplex (7)
Cimicifuga sp. (2)
Cineraria saxifraga (2)
Cinna bolanderi (15)
Cinna latifolia (13)
Cinnamomum camphora (32)
Cinnamomum camphorum (1)
Cinnamomum glanduliferum (4)
Cinnamomum japonicum (3)
Cinnamomum verum (4)
Cintia knizei (1)
Circaea alpina (8)
Circaea alpina ssp. alpina (2)
Circaea alpina ssp. pacifica (55)
Circaea lutetiana (4)
Circaea lutetiana ssp. canadensis (10)
Circaea X fernaldii (2)
Circium neomexicanum (2)
Cirisum clokeyi (2)
Cirisum eatonii var. clokeyi (12)
Cirrhaea longiracemosa (1)
Cirrhopetalum picturatum (3)
Cirsium (4)
Cirsium acaule (9)
Cirsium altissimum (2)
Cirsium andersonii (110)
Cirsium andrewsii (33)
Cirsium arizonicum (8)
Cirsium arizonicum var. arizonicum (24)
Cirsium arizonicum var. bipinnatum (3)
Cirsium arizonicum var. tenuisectum (13)
Cirsium arvense (93)
Cirsium arvense var. arvense (9)
Cirsium arvense var. incanum (1)
Cirsium brevistylum (71)
Cirsium californicum (3)
Cirsium canescens (13)
Cirsium canovirens (8)
Cirsium canum (4)
Cirsium ciliolatum (6)
Cirsium coahuilense (2)
Cirsium cymosum (39)
Cirsium cymosum var. canovirens (20)
Cirsium cymosum var. cymosum (29)
Cirsium discolor (33)
Cirsium dissectum (2)
Cirsium douglasii (14)
Cirsium douglasii var. breweri (49)
Cirsium douglasii var. douglasii (60)
Cirsium drummondii (3)
Cirsium eatonii (9)
Cirsium eatonii var. eriocephalum (18)
Cirsium edule (11)
Cirsium ehrenbergii (4)
Cirsium eriophorum (13)
Cirsium erisithales (2)
Cirsium flodmanii (6)
Cirsium foliosum (1)
Cirsium fontinale (6)
Cirsium fontinale var. campylon (84)
Cirsium fontinale var. fontinale (34)
Cirsium fontinale var. obispoense (38)
Cirsium grahamii (18)
Cirsium hookerianum (14)
Cirsium horridulum (7)
Cirsium hydrophilum (2)
Cirsium hydrophilum ssp. vaseyi (1)
Cirsium hydrophilum var. hydrophilum (15)
Cirsium hydrophilum var. hydrophylum (4)
Cirsium hydrophilum var. vaseyi (26)
Cirsium inamoenum (7)
Cirsium inamoenum var. inamoenum (12)
Cirsium japonicum (2)
Cirsium loncholepis (7)
Cirsium mohavense (54)
Cirsium mojavense (3)
Cirsium murdockii (3)
Cirsium muticum (26)
Cirsium neomexicanum (45)
Cirsium occidentale (106)
Cirsium occidentale var. californicum (204)
Cirsium occidentale var. candidissimum (45)
Cirsium occidentale var. compactum (30)
Cirsium occidentale var. lucianum (9)
Cirsium occidentale var. occidentale (86)
Cirsium occidentale var. venustum (150)
Cirsium ochrocentrum (27)
Cirsium ochrocentrum var. martinii (14)
Cirsium ochrocentrum var. ochrocentrum (4)
Cirsium oleraceum (10)
Cirsium palustre (20)
Cirsium parryi (6)
Cirsium pastoris (12)
Cirsium peckii (27)
Cirsium pitcheri (11)
Cirsium pulcherrimum (2)
Cirsium pumilum var. hillii (7)
Cirsium quercetorum (85)
Cirsium remotifolium (15)
Cirsium remotifolium var. odontolepis (15)
Cirsium remotifolium var. remotifolium (11)
Cirsium rhothophilum (16)
Cirsium scariosum (79)
Cirsium scariosum var. americanum (32)
Cirsium scariosum var. coloradense (2)
Cirsium scariosum var. congdonii (37)
Cirsium scariosum var. loncholepis (19)
Cirsium scariosum var. robustum (6)
Cirsium scariosum var. scariosum (24)
Cirsium scariosum var. thorneae (4)
Cirsium scopulorum (6)
Cirsium sp. (16)
Cirsium spinosissimum (15)
Cirsium subniveum (5)
Cirsium texanum (11)
Cirsium tracyi (3)
Cirsium turneri (8)
Cirsium tweedyi (2)
Cirsium undulatum (61)
Cirsium undulatum var. tracyi (1)
Cirsium undulatum; (2)
Cirsium vinaceum (3)
Cirsium virginense (1)
Cirsium vulgare (151)
Cirsium waldsteinii (5)
Cirsium wheeleri (11)
Cirsium wrightii (8)
Cirsium x-ochroleucum (14)
Cirsium ‘spinescens’ (2)
Cirsium--x-- flavescens (3)
Cirsum hydrophilum (1)
Cisampelos andromorpha (10)
Cissus cactiformis (1)
Cissus discolor (1)
Cissus erosa ssp. erosa (13)
Cissus nodosa (1)
Cissus quadrangularis (1)
Cissus rotundifolia (1)
Cissus trifoliolata (5)
Cissus verticillata (1)
Cistanche tinctoria (1)
Cistanthe ambigua (63)
Cistanthe celosioides (14)
Cistanthe grandiflora (5)
Cistanthe maritima (39)
Cistanthe monosperma (13)
Cistanthe picta (1)
Cistanthe tweedyi (4)
Cistanthe umbellata (10)
Cistanthe umbellata var. umbellata (5)
Cistus aguliari (1)
Cistus albidus (5)
Cistus corbariensis (1)
Cistus creticus (19)
Cistus crispus (3)
Cistus hybridus (3)
Cistus incanus (34)
Cistus incanus ssp. corsicus (1)
Cistus ladanifer (21)
Cistus laurifolius (3)
Cistus monspeliensis (3)
Cistus parviflorus (1)
Cistus psilosepalus (3)
Cistus purpureus (7)
Cistus salviifolius (29)
Cistus sp. (9)
Cistus symphytifolius (2)
Cistus x aguilarii (2)
Cistus x hybridus (1)
Cistus x purpureus (1)
Cistus X skanbergii (6)
Citharexylum berlandieri (3)
Citharexylum flabellifolium (24)
Citharexylum spinosum (1)
Citrofortunella microcarpa (1)
Citrofortunella mitis (1)
Citrullus colocynthis (3)
Citrullus colocynthis var. lanatus (3)
Citrullus lanatus (26)
Citrullus lanatus var. citroides (3)
Citrus aurantiifolia (3)
Citrus aurantium (5)
Citrus deliciosa (6)
Citrus grandis (5)
Citrus hystrix (3)
Citrus japonicus (1)
Citrus latifolia (1)
Citrus limon (15)
Citrus limon var. eureka (1)
Citrus maxima (3)
Citrus medica (2)
Citrus medica var. sacrodactylis (2)
Citrus paradisi (2)
Citrus reticulata (11)
Citrus sinensis (18)
Citrus tachibana (2)
Citrus tangarinus (2)
Citrus x aurantiifolia (1)
Citrus x aurantium (3)
Citrus x latifolia (1)
Citrus x limon (8)
Citrus x limonia (2)
Citrus x meyeri (1)
Citrus x paradisi (1)
Citrus x sinensis (8)
Citrus x tangelo (1)
Cladanthus arabicus (4)
Cladium californicum (32)
Cladium mariscoides (1)
Cladium mariscus jamaicense (3)
Cladophora (15)
Cladophora catenata (8)
Cladophora columbiana (2)
Cladophora feredayoides (6)
Cladophora glomerata cf (5)
Cladophora goweri (19)
Cladophora herpestica (30)
Cladophora ohkuboana (6)
Cladophora prehendens (10)
Cladophora socialis (5)
Cladophora socialis cf (7)
Cladophora vagabunda cf (6)
Cladrastis kentukea (4)
Claopodium bolanderi (1)
Claopodium whippleanum (4)
Claoxylon taitense (2)
Clappia suaedifolia (4)
Clarkia affinis (65)
Clarkia amoena (61)
Clarkia amoena ssp. amoena (10)
Clarkia amoena ssp. huntiana (30)
Clarkia amoena ssp. lindleyi (3)
Clarkia amoena ssp. whitneyi (9)
Clarkia arcuata (55)
Clarkia australis (15)
Clarkia biloba (15)
Clarkia biloba ssp. australis (53)
Clarkia biloba ssp. biloba (38)
Clarkia biloba ssp. brandegeeae (45)
Clarkia borealis (9)
Clarkia borealis ssp. borealis (40)
Clarkia bottae (26)
Clarkia breweri (71)
Clarkia concinna (62)
Clarkia concinna ssp. automixa (7)
Clarkia concinna ssp. concinna (46)
Clarkia concinna ssp. raichei (31)
Clarkia cylindrica (41)
Clarkia cylindrica ssp. clavicarpa (56)
Clarkia cylindrica ssp. cylindrica (42)
Clarkia davyi (54)
Clarkia delicata (38)
Clarkia dudleyana (91)
Clarkia elegans (2)
Clarkia epilobioides (26)
Clarkia exilis (1)
Clarkia franciscana (36)
Clarkia gracilis (29)
Clarkia gracilis ssp. albicaulis (26)
Clarkia gracilis ssp. gracilis (32)
Clarkia gracilis ssp. sonomensis (16)
Clarkia gracilis ssp. tracyi (53)
Clarkia heterandra (77)
Clarkia imbricata (20)
Clarkia jolonensis (5)
Clarkia lassenensis (33)
Clarkia lewisii (17)
Clarkia lingulata (23)
Clarkia mildrediae (3)
Clarkia mildrediae ssp. lutescens (13)
Clarkia mildrediae ssp. mildrediae (27)
Clarkia modesta (22)
Clarkia mosquinii (17)
Clarkia prostrata (11)
Clarkia pulchella (6)
Clarkia purpurea (46)
Clarkia purpurea ssp. purpurea (17)
Clarkia purpurea ssp. quadrivulnera (163)
Clarkia purpurea ssp. viminea (67)
Clarkia quadrivulnera (1)
Clarkia quadrivulnera ssp. quadrivulnera (1)
Clarkia rhombifolia (2)
Clarkia rhomboidea (164)
Clarkia rostrata (6)
Clarkia rubicunda (128)
Clarkia similis (23)
Clarkia sp. (12)
Clarkia speciosa (1)
Clarkia speciosa ssp. immaculata (43)
Clarkia speciosa ssp. polyantha (46)
Clarkia speciosa ssp. speciosa (20)
Clarkia springvillensis (35)
Clarkia stellata (19)
Clarkia tembloriensis (1)
Clarkia tembloriensis ssp. calientensis (13)
Clarkia tembloriensis ssp. tembloriensis (16)
Clarkia tenella (1)
Clarkia unguiculata (197)
Clarkia virgata (57)
Clarkia williamsonii (69)
Clarkia xantiana (11)
Clarkia xantiana ssp. parviflora (35)
Clarkia xantiana ssp. xantiana (65)
Clavaria zollingeri (1)
Claytonia arctica (2)
Claytonia caroliniana (12)
Claytonia cordifolia (6)
Claytonia crawfordii (52)
Claytonia exigua (23)
Claytonia exigua ssp. exigua (113)
Claytonia exigua ssp. glauca (9)
Claytonia gypsophiloides (75)
Claytonia lanceolata (93)
Claytonia lanceolata var. lanceolata (1)
Claytonia megarhiza (46)
Claytonia nevadensis (33)
Claytonia obovata (54)
Claytonia palustris (28)
Claytonia panamintensis (13)
Claytonia parviflora (25)
Claytonia parviflora ssp. grandiflora (27)
Claytonia parviflora ssp. parviflora (124)
Claytonia parviflora ssp. utahensis (10)
Claytonia parviflora ssp. viridis (33)
Claytonia peirsonii ssp. yorkii (15)
Claytonia perfoliata (86)
Claytonia perfoliata ssp. mexicana (8)
Claytonia perfoliata ssp. perfoliata (87)
Claytonia rubra (18)
Claytonia rubra ssp. depressa (32)
Claytonia rubra ssp. rubra (42)
Claytonia sarmentosa (1)
Claytonia saxosa (18)
Claytonia scammaniana (1)
Claytonia serpenticola (3)
Claytonia sibirica (132)
Claytonia sp. (4)
Claytonia spathulata (1)
Claytonia umbellata (27)
Claytonia virginica (28)
Claytonia washingtoniana (7)
Clebionus coronamus (8)
Cleisostoma sagittiforme (1)
Cleistanthus schlechteri (5)
Cleistes bifaria (2)
Cleistes divaricata (1)
Cleistocactus baumannii (3)
Cleistocactus candelilla (2)
Cleistocactus colademononis (3)
Cleistocactus hyalacanthus (10)
Cleistocactus icosagonus (1)
Cleistocactus ritteri (3)
Cleistocactus samaipatanus (4)
Cleistocactus smaragdiflorus (7)
Cleistocactus strausii (3)
Cleistocactus straussii var. fricii (3)
Cleistocactus sucrensis (1)
Cleistocactus tarijensis (5)
Cleistocactus tupizensis (2)
Cleistocactus winteri (13)
Clematis akebioides (1)
Clematis alpina (11)
Clematis armandii (9)
Clematis brachiata (1)
Clematis brasiliana (23)
Clematis cartmanii ssp. joe (1)
Clematis cartmanii ssp. sharon (1)
Clematis chrysocoma (4)
Clematis cirrhosa (4)
Clematis columbiana (35)
Clematis columbiana var. columbiana (6)
Clematis crispa (5)
Clematis drummondii (18)
Clematis flammula (17)
Clematis fremontii (2)
Clematis fusca (1)
Clematis heracleifolia (2)
Clematis hirsutissima (14)
Clematis hybrid (10)
Clematis integrifolia (1)
Clematis lanuginosa (3)
Clematis lasiandra (3)
Clematis lasiantha (184)
Clematis ligusticifolia (111)
Clematis manshurica (10)
Clematis microphylla (2)
Clematis montana (1)
Clematis montana var. grandiflora (2)
Clematis montevidensis var. montevidensis (1)
Clematis morefieldii (2)
Clematis occidentalis (9)
Clematis occidentalis var. grosseserrata (9)
Clematis orientalis (4)
Clematis pauciflora (30)
Clematis pitcheri (9)
Clematis pitcheri var. pitcheri (1)
Clematis pseudoalpina (4)
Clematis pubescens (2)
Clematis recta (3)
Clematis scottii (7)
Clematis serratifolia (2)
Clematis sp. (33)
Clematis tangutica (3)
Clematis tenuiloba (5)
Clematis tenuiloba ssp. ylva (1)
Clematis terniflora (3)
Clematis terniflora var. mandshurica (1)
Clematis texensis (4)
Clematis virginiana (18)
Clematis vitalba (34)
Clematis viticella (3)
Clematis viticella ssp. purpurea plena elegans (2)
Clementsia rhodantha (2)
Cleome aculeata var. cordobensis (1)
Cleome allamanii (1)
Cleome foliosa var. lutea (3)
Cleome gynandra (10)
Cleome lutea (13)
Cleome platycarpa (2)
Cleome rutidosperma (1)
Cleome serrulata (60)
Cleome sp. (4)
Cleome spinosa (7)
Cleome suffruticosa (4)
Cleomella brevipes (12)
Cleomella hillmanii (1)
Cleomella lutea (2)
Cleomella obtusifolia (56)
Cleomella palmeriana (3)
Cleomella parviflora (13)
Cleomella plocasperma (25)
Cleretum hestermalense (2)
Clermontia fauriei (13)
Clermontia hawaiiensis (12)
Clermontia lindseyana (4)
Clermontia montis-loa (14)
Clermontia peleana (6)
Clermontia pyrularia (5)
Clerodendrum buchananii var. fallax (1)
Clerodendrum bungei (6)
Clerodendrum chinense (1)
Clerodendrum coulteri (13)
Clerodendrum glabrum (13)
Clerodendrum inerme (1)
Clerodendrum paniculatum (1)
Clerodendrum philippinus (6)
Clerodendrum quadriloculare (1)
Clerodendrum sp. (1)
Clerodendrum speciosissimum (1)
Clerodendrum thomsoniae (11)
Clerodendrum trichotomum (12)
Clerodendrum ugandense (2)
Clerodendrum unicatum (7)
Clerodendrum wallichii (2)
Clerodendrum x speciosum (1)
Clethra alnifolia (4)
Clethra barbinervis (11)
Clethra hendersonii (1)
Clethra lanata (1)
Clethra mexicana (6)
Cleyera japonica var. grandiflora (6)
Clianthus formosus (6)
Clianthus maximus (3)
Clianthus puniceus (21)
Clidemia hirta (6)
Climacium dendroides (19)
Clinopodium alpinum (4)
Clinopodium chandleri (48)
Clinopodium douglasii (60)
Clinopodium glabrum (9)
Clinopodium grandiflorum (1)
Clinopodium mimuloides (11)
Clinopodium sp. (1)
Clinopodium suaveolens (2)
Clinopodium vulgare (11)
Clinopodium vulgare ssp. vulgare (6)
Clinostigma ponapense (1)
Clinostigma samoense (2)
Clintonia andrewsiana (128)
Clintonia borealis (25)
Clintonia umbellulata (3)
Clintonia unflora (3)
Clintonia uniflora (64)
Clitoria cordobensis (1)
Clitoria macrophylla (1)
Clitoria mariana (17)
Clitoria ternatea (16)
Clivia miniata (9)
Clusia major (1)
Clusia rosea (21)
Clusia sp. (2)
Clytostoma callistegioides (12)
Cneoridium dumosum (75)
Cnicothamnus lorentzii (2)
Cnicus benedictus (7)
Cnidoscolus aconitifolius (7)
Cnidoscolus angustidens (7)
Cnidoscolus maculatus (9)
Cnidoscolus multilobus (5)
Cnidoscolus stimulans (1)
Cnidoscolus texanus (13)
Cnidoscolus urens (5)
Cobaea scandens (14)
Coccinia grandis (8)
Coccoloba laevis (36)
Coccoloba rosea (43)
Coccoloba uvifera (29)
Coccothrinax argentata (2)
Cocculus laurifolius (10)
Cochemiea poselgeri (8)
Cochemiea setispina (7)
Cochlearia danica (2)
Cochlearia groenlandica (1)
Cochlearia officinalis (3)
Cochlearia sp. (1)
Cochliasanthus caracalla (5)
Cochlospermum fraseri (4)
Cochlospermum vitifolium (10)
Cochlospermum vitifolium 'Plena' (2)
Cochorium intybus (1)
Cocos nucifera (35)
Cocos nucifera var. samoa (3)
Cocothrinax argentata (1)
Cocothrinax sp. (1)
Codiaeum variegatum (6)
Codiaeum variegatum cv. Mammy (1)
Codiaeum variegatum var. pictum (4)
Codiaeum variegatum var. variegatum (1)
Codiaeum variegatum var. variegatum 'spiral' (1)
Codium arabicum (7)
Codium fragile (6)
Codium geppiorum (10)
Codium isthmocladum (1)
Codium isthmocladum ssp. clavatum (1)
Codium ovale (2)
Codium setchellii (2)
Codon royenii (2)
Codonopsis grey-wilsonii (4)
Codonopsis ussuriensis (7)
Codonopsis vinciflora (1)
Codonorchis lessonii (7)
Codonorhiza corymbosa (3)
Codriophorus depressus (9)
Codriophorus ryszardii (8)
Coeloglossum viride (14)
Coelogyne cristata (1)
Coelogyne flaccida (1)
Coelogyne pandurata (7)
Coelogyne ramosissima (5)
Coelogyne testacea (4)
Coelothrix irregularis (7)
Coffea arabica (34)
Coffea liberica (1)
Coffea sp. (1)
Coix lacryma-jobi (4)
Col (1)
Colchicum agrippinum (1)
Colchicum arenarium (1)
Colchicum autumnale (12)
Colchicum baytopiorum (1)
Colchicum cupanii (10)
Colchicum hungaricum (1)
Colchicum lusitanicum (4)
Colchicum ritchii (1)
Colchicum sp. (3)
Colchicum speciosum ssp. album (1)
Colchicum triphyllum (3)
Coleocephalocereus aureus (5)
Coleogyne ramosissima (91)
Coleonema pulchrum (10)
Coleus scutellarioides (2)
Coleus x hybridus (4)
Colletia hystrix (2)
Colletia paradoxa (10)
Colletia spinosissima (4)
Colletia ulicina (3)
Colliguaja integeriima (1)
Colliguaja integerrima (2)
Colliguaja odorifera (8)
Collinsia antonina (13)
Collinsia bartsiifolia (7)
Collinsia bartsiifolia ssp. davidsonii (2)
Collinsia bartsiifolia var. bartsiifolia (11)
Collinsia bartsiifolia var. davidsonii (20)
Collinsia callosa (36)
Collinsia childii (64)
Collinsia concolor (29)
Collinsia corymbosa (52)
Collinsia grandiflora (23)
Collinsia greenei (38)
Collinsia heterophylla (204)
Collinsia heterophylla var. austromontana (10)
Collinsia heterophylla var. heterophylla (46)
Collinsia linearis (31)
Collinsia multicolor (63)
Collinsia parryi (13)
Collinsia parviflora (91)
Collinsia rattanii (13)
Collinsia sp. (1)
Collinsia sparsiflora (43)
Collinsia sparsiflora sparsiflora (1)
Collinsia sparsiflora var sparsiflora (3)
Collinsia sparsiflora var. arvensis (6)
Collinsia sparsiflora var. bruceae (2)
Collinsia sparsiflora var. collina (60)
Collinsia sparsiflora var. sparsiflora (32)

Collinsia sparsifora (1)
Collinsia tinctoria (151)
Collinsia torreyi (51)
Collinsia torreyi ssp. torreyi (3)
Collinsia torreyi var. brevicarinata (1)
Collinsia torreyi var. latifolia (18)
Collinsia torreyi var. torreyi (25)
Collinsia torreyi var. wrightii (44)
Collinsia verna (4)
Collinsis heterophylla var. heterophylla (1)
Collomia biflora (5)
Collomia diversifolia (33)
Collomia grandiflora (126)
Collomia heterophylla (130)
Collomia larsenii (32)
Collomia linearis (42)
Collomia mazama (4)
Collomia rawsoniana (22)
Collomia sp. (1)
Collomia tinctoria (77)
Collomia traceyi (7)
Collomia tracyi (24)
Colobanthus quitensis (3)
Colocasia antiquorum (1)
Colocasia esculenta (17)
Colocasia fallax (1)
Colocasia gigantea (1)
Cologania angustifolia (2)
Cologania broussonetii (3)
Cologania obovata (5)
Colophospermum mopane (11)
Colophospernum mopane (6)
Colosphospermum mopane (6)
Colpomenia bullosa (2)
Colpomenia peregrina (1)
Colpomenia sinuosa (6)
Colpomenia tuberculata (1)
Colubrina asiatica (2)
Colubrina californica (20)
Colubrina oppositifolia (2)
Colubrina texensis (1)
Colubrina texensis var. texensis (4)
Colubrina viridis (5)
Columbiadoria hallii (9)
Columnea purpureovittata (2)
Columnea schiedeana (4)
Colutea arborescens (17)
Comandra umbellata (15)
Comandra umbellata ssp. californica (37)
Comandra umbellata ssp. pallida (28)
Comandra umbellata ssp. umbellata (4)
Comanthosphace japonica (1)
Comarostaphylis arbutoides (5)
Comarostaphylis diversifolia (7)
Comarostaphylis diversifolia ssp. diversifolia (73)
Comarostaphylis diversifolia ssp. planifolia (25)
Comarostaphylis polifolia (10)
Comarostaphylos densifolia var. planifolia (1)
Comarostaphylos polifolia (1)
Comarum palustre (51)
Comastoma tenellum (10)
Combretum apiculatum (9)
Combretum apiculatum ssp. apiculatum (2)
Combretum collinum (4)
Combretum erythrophyllum (3)
Combretum fruticosum (5)
Combretum hereroense (10)
Combretum imberbe (23)
Combretum indica (2)
Combretum kraussii (3)
Combretum mkuzense (5)
Combretum molle (10)
Combretum nelsonii (2)
Combretum platypetalum (1)
Combretum vendae (1)
Combretum zeyheri (11)
Commelina afriicana (1)
Commelina benghalensis (8)
Commelina coelestis (2)
Commelina communis (20)
Commelina communis var. communis (1)
Commelina dianthifolia (11)
Commelina diffusa (1)
Commelina erecta (10)
Commelina erecta var. angustifolia (10)
Commelina erecta var. erecta f. erecta (1)
Commelina petersii (1)
Commelina sp. (2)
Commelina tuberosa (3)
Commelina virginica (1)
Commersonia bartramia (1)
Commicarpus australis (1)
Commicarpus brandegeei (10)
Commicarpus brandegeei ssp. glabrior (5)
Commicarpus scandens (12)
Commiophora mollis (3)
Commiphora africana (1)
Commiphora angolensis (2)
Commiphora glandulosa (7)
Commiphora marlothii (19)
Commiphora mollis (23)
Commiphora pyracanthoides (7)
Commiphora schimperi (2)
Commiphora tenuipetiolata (9)
Commiphora viminea (3)
Commiphora virgata (3)
Comparettia falcata (1)
Comptonia peregrina (16)
Conanthera bifolia (2)
Conchocelis rosea/porphyra (1)
Condalia ericoides (12)
Condalia globosa var. pubescens (19)
Condalia hookeri (7)
Condalia lycioides (1)
Condalia obtusifolia (2)
Condalia parryi (1)
Condalia velutina (7)
Condalia viridis (1)
Condalia warnockii (7)
Condalia warnockii var. warnockii (3)
Condea emoryi (93)
Condea laniflora (18)
Condea tephrodes (3)
Conicosia elongata (1)
Conicosia pugioniformis (43)
Conicosia pugioniformis ssp. muirii (2)
Conicosia pugioniformis ssp. pugioniformis (1)
Coniogramme emeiensis (2)
Coniogramme japonica (2)
Conioselinum pacificum (5)
Conium maculatum (131)
Conocarpus erectus (7)
Conocephalum conicum (12)
Conocephalum salebrosum (15)
Conocephalum sp (1)
Conocephalum sp. (3)
Conoclinium betonicifolium (3)
Conoclinium coelestinum (11)
Conoclinium dissectum (9)
Conoclinium greggii (3)
Conopholis alpina (1)
Conopholis americana (6)
Conopholus alpina (5)
Conophytum acutum (2)
Conophytum friedrichiae (2)
Conophytum herreanthus (2)
Conophytum minutum var. nudum (1)
Conophytum pillansii (1)
Conophytum uniforme ssp. uniforme (1)
Conophytum wettsteinii (1)
Conopodium majus (3)
Conospermum taxifolium (4)
Conospermum triplinervum (1)
Conostegia xalapensis (2)
Conostomium natalense (3)
Conostylis candicans (2)
Conostylis juncea (4)
Conostylis pusilla (2)
Conringia orientalis (5)
Consolea rubescens (7)
Consolida ajacis (13)
Consolida regalis (4)
Constancea nevinii (19)
Convallaria majalis (19)
Convolvulus althaeoides (2)
Convolvulus arvensis (138)
Convolvulus cantabrica (4)
Convolvulus cneorum (2)
Convolvulus elegantissimus (23)
Convolvulus equitans (25)
Convolvulus lineatus (5)
Convolvulus luteolus (1)
Convolvulus mauritanicus (3)
Convolvulus sabatius (3)
Convolvulus siculus (1)
Convolvulus simulans (82)
Convolvulus sp. (7)
Convolvulus tricolor (18)
Convovulus repens (5)
Conyza albida (9)
Conyza bonariensis (10)
Conyza canadensis (14)
Conyza canadensis var. canadensis (2)
Conyza coulteri (4)
Conyza ramosissima (3)
Cooperia drummondii (1)
Copiapoa calderana (1)
Copiapoa cinerascens (14)
Copiapoa cinerea (6)
Copiapoa cinerea ssp. haseltoniana (2)
Copiapoa cinerea var. albispina (1)
Copiapoa cinerea var. columna alba (1)
Copiapoa cinerea var. columna-alba (13)
Copiapoa dealbata (15)
Copiapoa echinoides (2)
Copiapoa hypogaea (2)
Copiapoa hypogaea ssp. laui (2)
Copiapoa krainziana (1)
Copiapoa longistaminea (2)
Copiapoa serpentisulcata (2)
Copiapoa tenuissima (3)
Copiopoa esmeraldana (1)
Coprosma ernodeoides (11)
Coprosma menziesii (10)
Coprosma montana (11)
Coprosma ochracea (7)
Coprosma repens (19)
Coprosma rhynchocarpa (7)
Coprosma sp. (5)
Coprosma waimeae (5)
Coptis laciniata (25)
Coptis occidentalis (1)
Coptis trifolia (13)
Coquhounia vestita (4)
Corallina elongata (2)
Corallina officinalis var. chilensis (1)
Corallina sp. (1)
Corallorhiza maculata (227)
Corallorhiza maculata ssp. mertensiana (2)
Corallorhiza maculata var. flavida (2)
Corallorhiza maculata var. immaculata (4)
Corallorhiza maculata var. maculata (19)
Corallorhiza maculata var. maculata fma. immaculata (2)
Corallorhiza maculata var. maculata forma immaculata (1)
Corallorhiza maculata var. occidentalis (40)
Corallorhiza maculata var. occidentalis fma. aurea (1)
Corallorhiza mertensiana (74)
Corallorhiza striata (96)
Corallorhiza striata var. striata (3)
Corallorhiza trifida (27)
Corallorhiza wisteriana (14)
Corchorus cunninghamii (2)
Corchorus hygrophilus (2)
Corchorus olitorius (2)
Cordia alamosana (1)
Cordia boissieri (30)
Cordia calcicola (1)
Cordia coyucana (1)
Cordia curassavica (5)
Cordia decandra (2)
Cordia dodecandra (1)
Cordia glabrata (6)
Cordia lutea (9)
Cordia nodosa (19)
Cordia parvifolia (7)
Cordia sebestena (11)
Cordia sonorae (3)
Cordia subcordata (8)
Cordyalis caseana ssp. caseana (3)
Cordyalis flexuosa (2)
Cordyla africana (7)
Cordylanthus capitatus (13)
Cordylanthus eremicus ssp. eremicus (4)
Cordylanthus eremicus ssp. kernensis (4)
Cordylanthus kingii ssp. helleri (19)
Cordylanthus kingii ssp. kingii (2)
Cordylanthus maritimus ssp. canescens (3)
Cordylanthus nevinii (34)
Cordylanthus nidularius (9)
Cordylanthus orcuttianus (3)
Cordylanthus palmatus (1)
Cordylanthus parviflorus (48)
Cordylanthus pilosus (10)
Cordylanthus pilosus ssp. hansenii (9)
Cordylanthus pilosus ssp. pilosus (33)
Cordylanthus pilosus ssp. pilosus s (1)
Cordylanthus pringlei (22)
Cordylanthus ramosus (53)
Cordylanthus rigidus (2)
Cordylanthus rigidus ssp. rigidus (62)
Cordylanthus rigidus ssp. setigerus (41)
Cordylanthus sp. (1)
Cordylanthus tecopensis (6)
Cordylanthus tenuis (17)
Cordylanthus tenuis ssp. barbatus (11)
Cordylanthus tenuis ssp. brunneus (16)
Cordylanthus tenuis ssp. capillaris (29)
Cordylanthus tenuis ssp. pallescens (12)
Cordylanthus tenuis ssp. tenuis (24)
Cordylanthus tenuis ssp. viscidus (19)
Cordylanthus wrightii (2)
Cordylanthus wrightii ssp. tenuilobus (5)
Cordyline australis (26)
Cordyline cannifolia (7)
Cordyline congesta (5)
Cordyline fruticosa (4)
Cordyline manners-suttoniae (2)
Cordyline murchisoniae (2)
Cordyline petiolaris (10)
Cordyline rubra (7)
Cordyline sp. (3)
Cordyline stricta (3)
Cordyline terminalis (1)
Coreocarpus arizonicus (23)
Coreocarpus parthenioides (12)
Coreocarpus parthenioides var. parthenioides (18)
Coreopsis auriculata (2)
Coreopsis basalis (1)
Coreopsis bigelovii (6)
Coreopsis californica (1)
Coreopsis californica var. californica (3)
Coreopsis calliopsidea (5)
Coreopsis gigantea (6)
Coreopsis gladiata (6)
Coreopsis grandiflora (21)
Coreopsis hybrid (3)
Coreopsis lanceolata (29)
Coreopsis leavenworthii (6)
Coreopsis major (9)
Coreopsis nuecensis (3)
Coreopsis palmata (12)
Coreopsis rosea (2)
Coreopsis sp. (16)
Coreopsis stillmanii (3)
Coreopsis tinctoria (24)
Coreopsis tinctoria var. atkinsoniana (2)
Coreopsis tripteris (5)
Coreopsis verticillata (3)
Coreopsis x hybrida (1)
Corethrogyne filaginifolia (246)
Corethrogyne filaginifolia var. californica (4)
Corethrogyne filaginifolia var. incana (2)
Corethrogyne filaginifolia var. linifolia (3)
Corethrogyne leucophylla (1)
Coriandrum sativum (17)
Coriaria plumosa (2)
Coriaria ruscifolia (10)
Corispermum americanum (3)
Corispermum americanum var. americanum (17)
Cornus alba (7)
Cornus alternifolia (8)
Cornus amomum ssp. obliqua (13)
Cornus canadensis (113)
Cornus capitata (40)
Cornus controversa (4)
Cornus controversa var. variegata (2)
Cornus disciflora (4)
Cornus florida (46)
Cornus florida var. urbiniana (3)
Cornus glabrata (27)
Cornus kousa (51)
Cornus kousa var. chinensis (10)
Cornus mas (14)
Cornus nuttallii (196)
Cornus obliqua (2)
Cornus occidentalis (1)
Cornus officinalis (5)
Cornus paucinervis (4)
Cornus racemosa (33)
Cornus rugosa (5)
Cornus sanguinea (10)
Cornus sericea (63)
Cornus sericea ssp. occidentalis (31)
Cornus sericea ssp. sericea (112)
Cornus sericea ssp. stolonifera (3)
Cornus sericea ssp.occidentalis (3)
Cornus sessilis (33)
Cornus sp. (11)
Cornus stolonifera (4)
Cornus unalaschkensis (12)
Cornus wilsoniana (3)
Cornus X rutgersensis (2)
Cornyabutilon vitifolium (1)
Corokia cotoneaster (1)
Coronilla cretica (1)
Coronilla emerus ssp. emeroides (4)
Coronilla scorpioides (4)
Coronilla vaginalis (6)
Coronilla valentina (7)
Coronilla varia (8)
Coronopus didymus (3)
Corpuscularia lehmannii (1)
Correa alba (3)
Correa backhousiana (1)
Correa calycina (1)
Correa glabra (4)
Correa reflexa (1)
Correa reflexa var. reflexa (1)
Correa sp. (1)
Correa X wyn's wonder (4)
Corrigiola litoralis (2)
Corryocactus erectus (1)
Cortaderia jubata (41)
Cortaderia selloana (27)
Coryanthes speciosa (56)
Corycium orobanchoides (3)
Corydalis ambigua (1)
Corydalis aurea (27)
Corydalis aurea ssp. aurea (3)
Corydalis aurea ssp. occidentalis (2)
Corydalis bracteata (1)
Corydalis caseana (12)
Corydalis caseana ssp. brachycarpa (4)
Corydalis caseana ssp. brandegeei (10)
Corydalis caseana ssp. caseana (32)
Corydalis caseana ssp. cusickii (2)
Corydalis cava (10)
Corydalis flavula (2)
Corydalis flexuosa (12)
Corydalis flexuosa ssp. china blue (1)
Corydalis heterocarpa (5)
Corydalis integra (3)
Corydalis linstowiana (1)
Corydalis macrocentra (1)
Corydalis malkensis (3)
Corydalis micrantha ssp. micrantha (9)
Corydalis ochroleuca (1)
Corydalis pauciflora (1)
Corydalis scouleri (10)
Corydalis sempervirens (20)
Corydalis solida ssp. beth evans (4)
Corydalis solida ssp. solida (5)
Corydalis turtschaninovii (2)
Corylopsis glandulifera (7)
Corylopsis pauciflora (1)
Corylopsis veitchiana (4)
Corylus americana (19)
Corylus avellana (15)
Corylus avellana var. contorta (3)
Corylus colurna (2)
Corylus cornuta (22)
Corylus cornuta ssp. californica (87)
Corylus cornuta var. californica (10)
Corylus cornuta var. cornuta (4)
Corylus sp. (2)
Corylus tibetica (1)
Corymbia calophylla (19)
Corymbia citriodora (4)
Corymbia ficifolia (11)
Corymbia filicifolia (3)
Corymbia lehmannii (15)
Corymbia maculata (30)
Corymbia torelliana (2)
Corymborkis veratrifolia (4)
Corynocarpus laevigata (8)
Corynocystis prostrata (10)
Corynopuntia aggeria (1)
Corynopuntia grahamii (25)
Corypha umbraculifera (1)
Coryphantha alversonii (42)
Coryphantha calipensis (2)
Coryphantha chihuahuensis (6)
Coryphantha chlorantha (24)
Coryphantha compacta (17)
Coryphantha cornifera (6)
Coryphantha difficilis (1)
Coryphantha durangensis (4)
Coryphantha echinus (3)
Coryphantha echinus var. echinus (5)
Coryphantha echinus var. robusta (11)
Coryphantha elephantidens (1)
Coryphantha erecta (3)
Coryphantha gracilis (7)
Coryphantha lasiacantha (1)
Coryphantha macromeris (10)
Coryphantha macromeris var. macromeris (3)
Coryphantha macromeris var. runyonii (6)
Coryphantha maiz-tablasensis (2)
Coryphantha minima (1)
Coryphantha octacantha (3)
Coryphantha poselgeriana (15)
Coryphantha ramillosa (9)
Coryphantha recurvata (5)
Coryphantha robustispina (1)
Coryphantha robustispina spp. robustispina (2)
Coryphantha robustispina spp. uncinata (2)
Coryphantha robustispina ssp. robustispina (6)
Coryphantha robustispina ssp. scheeri (7)
Coryphantha robustispina ssp. uncinata (1)
Coryphantha robustispina var. scheeri (1)
Coryphantha tuberculosa (12)
Coryphantha vivipara (16)
Coryphantha vivipara var. rosea (16)
Coryphopteris sp. (32)
Corythrogyne filaginifolia (1)
Cosentinia vellea (1)
Cosmos atrosanguineus (1)
Cosmos bipinnatus (58)
Cosmos linearifolia (5)
Cosmos palmeri (9)
Cosmos parviflora (1)
Cosmos parviflorus (20)
Cosmos sulphureus (12)
Costaria costata (2)
Costus afer (1)
Costus amazonicus (1)
Costus glaucus (1)
Costus speciosus (2)
Costus speciosus var. variegatus (1)
Costus spicatus (1)
Costus vinosus (1)
Cota tinctoria (3)
Cotinus coggygria (64)
Cotinus obovatus (4)
Cotoneaster apiculatus (2)
Cotoneaster conspicuus (1)
Cotoneaster crispii (2)
Cotoneaster dammeri (1)
Cotoneaster denticulata (1)
Cotoneaster dielsianus (4)
Cotoneaster divaricatus (2)
Cotoneaster franchetii (11)
Cotoneaster gamblei (2)
Cotoneaster horizontalis (5)
Cotoneaster integerrimus (5)
Cotoneaster integrifolius (1)
Cotoneaster lacteus (47)
Cotoneaster microphyllus (1)
Cotoneaster miniatus (2)
Cotoneaster nitens (1)
Cotoneaster pannosus (27)
Cotoneaster rehderi (1)
Cotoneaster salicifolia (1)
Cotoneaster salicifolius (1)
Cotoneaster salicifolius var. henryanus (4)
Cotoneaster simonsii (3)
Cotoneaster sp. (5)
Cotoneaster sternianus (2)
Cotoneaster tengyuehensis (2)
Cotoneaster villosulus (1)
Cotoneaster X watereri (3)
Cotoneaster ×suecicus (1)
Cottsia californica (12)
Cottsia gracilis (10)
Cottsia linearis (6)
Cotula australis (53)
Cotula coronopifolia (98)
Cotula lineariloba (8)
Cotula turbinata (2)
Cotyledon campanulata (1)
Cotyledon macrantha (1)
Cotyledon oophylla (1)
Cotyledon orbiculata (12)
Cotyledon orbiculata var. oblonga (6)
Cotyledon pellucida (2)
Cotyledon pendens (3)
Cotyledon tomentosa (2)
Cotyledon tomentosa ssp. ladismithiensis (3)
Cotyledon tomentosa ssp. tomentosa (2)
Cotyledon velutina (4)
Cotyledon woodii (1)
Cotynus coggygria (1)
Coulterella capitata (19)
Couroupita guianensis (15)
Coursetia caribaea (3)
Coursetia glandulosa (27)
Crabbea angustifolia (1)
Crambe maritima (2)
Cranichis elliptica (4)
Cranichis muscosa (2)
Craspedia globosa (8)
Crassocephalum crepidioides (6)
Crassothonna capensis (1)
Crassula alba (4)
Crassula alba var. parvisepala (4)
Crassula aquatica (39)
Crassula arborescens (9)
Crassula arborescens ssp. undulatifolia (4)
Crassula argentea (5)
Crassula atropurpurea (3)
Crassula ausensis ssp. tithanopsis (1)
Crassula barklyi (4)
Crassula capitella (6)
Crassula capitella ssp. thyrsiflora (6)
Crassula colligata ssp. lamprosperma (17)
Crassula conjuncta (1)
Crassula connata (104)
Crassula connata var. subsimplex (1)
Crassula cooperi (2)
Crassula corallina (2)
Crassula cordata (2)
Crassula corymbulosa (4)
Crassula deceptor (2)
Crassula dejecta (3)
Crassula dichotoma (1)
Crassula dubia (1)
Crassula erosula (5)
Crassula falcata (12)
Crassula fascicularis (2)
Crassula fascicularis x coccinea (3)
Crassula glomerata (1)
Crassula harveyi (1)
Crassula hottentotta (2)
Crassula hystrix (3)
Crassula lactea (2)
Crassula mesembrianthemopsis (1)
Crassula mesembryanthemoides (2)
Crassula mesembryanthemoides ssp. hispida (1)
Crassula multicava (16)
Crassula muscosa (3)
Crassula nudicaulis ssp. platyphylla (1)
Crassula nudicaulis var. platyphylla (1)
Crassula orbicularis (1)
Crassula orbicularis var. orbicularis (2)
Crassula ovata (18)
Crassula ovata var. gollum (5)
Crassula pellucida (2)
Crassula pellucida ssp. marginalis (1)
Crassula perfoliata var. minor (1)
Crassula perforata (7)
Crassula picturata (4)
Crassula plegmatoides (1)
Crassula pruinosa (2)
Crassula pubescens ssp. radicans (4)
Crassula rogersii (1)
Crassula rupestris (3)
Crassula sarcocaulis (3)
Crassula sarmentosa (4)
Crassula schmidtii (1)
Crassula setulosa (4)
Crassula setulosa var. curta (3)
Crassula solieri (3)
Crassula sp. (22)
Crassula streyi (5)
Crassula susannae (1)
Crassula swaziensis (1)
Crassula tecta (3)
Crassula tetragona (2)
Crassula tillaea (50)
Crataegus ambigua (4)
Crataegus calpodendron (3)
Crataegus castlegarensis (19)
Crataegus coccinoides (2)
Crataegus crus-galli (8)
Crataegus douglasii (20)
Crataegus douglasii var. douglasii (2)
Crataegus douglasii var. rivularis (6)
Crataegus gaylussacia (20)
Crataegus laevigata (15)
Crataegus mexicana (1)
Crataegus mollis (3)
Crataegus monogyna (36)
Crataegus phaenopyrum (10)
Crataegus pinnatifida (5)
Crataegus pubescens (2)
Crataegus punctata (2)
Crataegus rhodamae-loveae (4)
Crataegus rivularis (1)
Crataegus sp. (7)
Crataegus suksdorfii (1)
Crataegus tracyi (3)
Crataegus X media (2)
Craterostigma hirsutum (1)
Craterostigma pumilum (3)
Cratoneuron filicinum (11)
Cremnophila nutans (2)
Crepidium resupinata (1)
Crepidomanes bipunctatum (7)
Crepidomanes humile (13)
Crepidomanes kurzii (9)
Crepidomanes minutum (48)
Crepis acuminata (103)
Crepis atribarba (2)
Crepis aurea (9)
Crepis bakeri (43)
Crepis biennis (4)
Crepis bursifolia (43)
Crepis capillaris (35)
Crepis intermedia (39)
Crepis modocensis (23)
Crepis modocensis ssp. modocensis (9)
Crepis modocensis ssp. subacaulis (3)
Crepis monticola (16)
Crepis nana (17)
Crepis neglecta (2)
Crepis occidentalis (48)
Crepis occidentalis ssp. conjuncta (13)
Crepis occidentalis ssp. costata (11)
Crepis occidentalis ssp. occidentalis (18)
Crepis occidentalis ssp. pumila (3)
Crepis pleurocarpa (38)
Crepis pulchra (25)
Crepis rubra (9)
Crepis runcinata (20)
Crepis runcinata ssp. hallii (29)
Crepis runcinata var. hallii (3)
Crepis sancta (9)
Crepis setosa (4)
Crepis slovenica (4)
Crepis sp. (6)
Crepis tectorum (20)
Crepis terglouensis (1)
Crepis vesicaria (3)
Crepis vesicaria ssp. taraxacifolia (38)
Crescentia alata (3)
Crescentia cujete (10)
Cressa nudicaulis (2)
Cressa truxillensis (89)
Crinodendron patagua (10)
Crinum americanum (5)
Crinum angustatum (pink) (1)
Crinum asiaticum (6)
Crinum asiaticum var. procerum (white) (2)
Crinum augustum (1)
Crinum bulbispermum (5)
Crinum buphanoides (1)
Crinum buphanoides Welw. ex Baker (5)
Crinum latifolium (3)
Crinum macowanii (12)
Crinum minimum (2)
Crinum moorei (2)
Crinum stuhlmannii (3)
Crinum x amabile (2)
Cristaria integerrima var. integerrima (8)
Crithmum maritimum (14)
Crocanthemum aldersonii (9)
Crocanthemum georgianum (1)
Crocanthemum greenei (9)
Crocanthemum scoparium (105)
Crocanthemum scoparium var. vulgare (2)
Crocanthemum suffrutescens (17)
Crocidium multicaule (35)
Crocosmia aurea (5)
Crocosmia masonorum (4)
Crocosmia paniculata (5)
Crocosmia x crocosmiiflora (7)
Crocosmia ×crocosmiiflora (5)
Crocosomia crocosomiiflora (3)
Crocus albiflorus (2)
Crocus ancyrensis (1)
Crocus banaticus (4)
Crocus biflorus ssp. biflorus (15)
Crocus biflorus ssp. pulchricolor (5)
Crocus biflorus ssp. weldenii (13)
Crocus chrysanthus ssp. gypsy girl (1)
Crocus gargaricus (3)
Crocus goulimyi (2)
Crocus goulimyi ssp. albus (1)
Crocus imperati (7)
Crocus kotschyanus (2)
Crocus malyi (1)
Crocus medius (1)
Crocus neapolitanus (6)
Crocus nudiflorus (1)
Crocus olivieri (1)
Crocus reticulatus (10)
Crocus sativus (4)
Crocus serotinus (2)
Crocus serotinus ssp. clusii (1)
Crocus sieberi (1)
Crocus sieberi ssp. sublimis (2)
Crocus sp. (1)
Crocus suaveolens (7)
Crocus thomasii (7)
Crocus veluchensis (3)
Crocus vernus (4)
Crocus vernus ssp. albiflorus (11)
Crocus vernus ssp. vernus (19)
Croptilon divaricatum (7)
Croptilon rigidifolium (3)
Crossandra infundibuliformis (8)
Crossandra nilotica (4)
Crossandra subacaulis (15)
Crossidium squamiferum (4)
Crossopetalum ilicifolium (1)
Crossopetalum macrocarpum (1)
Crossopteryx febrifuga (5)
Crossosoma bigelovii (67)
Crossosoma californicum (32)
Crossostylis biflora (1)
Crotalaria agatiflora (7)
Crotalaria falcata (1)
Crotalaria incana (4)
Crotalaria incana ssp. incana (1)
Crotalaria pallida var. obovata (1)
Crotalaria pumila (12)
Crotalaria retusa (17)
Crotalaria rotundifolia (6)
Crotalaria sagittalis (26)
Crotalaria saltiana (6)
Croton alamosana (2)
Croton caboensis (1)
Croton californicus (146)
Croton ciliatoglandulifer (9)
Croton dioicus (18)
Croton fruticulosus (7)
Croton gratissimus (10)
Croton jucundus (1)
Croton lindheimerianus (5)
Croton linearis (1)
Croton magdalenae (8)
Croton megalobotrys (21)
Croton monanthognus (6)
Croton morifolius (2)
Croton pottsii (19)
Croton punctatus (12)
Croton ramillatus var. insignilobus (1)
Croton sarcopetalus (2)
Croton scouleri (1)
Croton setiger (126)
Croton setigerus (13)
Croton sonorae (1)
Croton sp. (1)
Croton suberosus (1)
Croton tetradenius (8)
Croton texensis (9)
Croton wigginsii (27)
Croton zambalensis (1)
Crouania attenuata (15)
Crucianella angustifolia (11)
Cruciata glabra (2)
Cruciata laevipes (4)
Cruckshanksia pumila (7)
Crumia latifolia (12)
Crupina crupinastrum (5)
Crupina vulgaris (20)
Crusea diversifolia (1)
Crusea longiflora (4)
Crypsis alopecuroides (8)
Crypsis schoenoides (36)
Crypsis vaginiflora (18)
Cryptantha affinis (26)
Cryptantha ambigua (18)
Cryptantha angustifolia (79)
Cryptantha barbigera (31)
Cryptantha barbigera var. barbigera (26)
Cryptantha barbigera var. fergusoniae (6)
Cryptantha cana (4)
Cryptantha capitata (8)
Cryptantha celosioides (15)
Cryptantha cinera var. jamesii (2)
Cryptantha cinerea var. abortiva (25)
Cryptantha circumcissa (1)
Cryptantha circumscissa (43)
Cryptantha circumscissa var. circumscissa (35)
Cryptantha circumscissa var. rosulata (3)
Cryptantha clementina (1)
Cryptantha clevelandii (32)
Cryptantha clevelandii var. florosa (11)
Cryptantha clokeyi (11)
Cryptantha confertiflora (103)
Cryptantha costata (77)
Cryptantha crassisepala (8)
Cryptantha crassisepala var. elacantha (6)
Cryptantha crinita (19)
Cryptantha crymophila (5)
Cryptantha decipiens (14)
Cryptantha dissita (4)
Cryptantha dumetorum (18)
Cryptantha echinella (30)
Cryptantha flaccida (40)
Cryptantha flava (3)
Cryptantha flavoculata (45)
Cryptantha fulvocanescens (1)
Cryptantha ganderi (20)
Cryptantha glomeriflora (10)
Cryptantha gracilis (8)
Cryptantha hispidissima (2)
Cryptantha hispidula (9)
Cryptantha hoffmannii (13)
Cryptantha holoptera (26)
Cryptantha hooveri (5)
Cryptantha howelliana (3)
Cryptantha humilis (39)
Cryptantha inaequata (15)
Cryptantha intermedia (30)
Cryptantha intermedia var. intermedia (1)
Cryptantha johnstonii (3)
Cryptantha jonesiana (2)
Cryptantha leiocarpa (45)
Cryptantha mariposae (9)
Cryptantha maritima (33)
Cryptantha mexicana (1)
Cryptantha micrantha (37)
Cryptantha micrantha var. lepida (16)
Cryptantha micrantha var. micrantha (33)
Cryptantha micromeres (10)
Cryptantha microstachys (14)
Cryptantha milo-bakeri (6)
Cryptantha milobakeri (12)
Cryptantha minima (3)
Cryptantha mohavensis (28)
Cryptantha muricata (43)
Cryptantha muricata var. denticulata (8)
Cryptantha muricata var. jonesii (10)
Cryptantha muricata var. muricata (3)
Cryptantha nemaclada (9)
Cryptantha nevadensis (47)
Cryptantha nevadensis var. nevadensis (24)
Cryptantha nevadensis var. rigida (14)
Cryptantha nubigena (28)
Cryptantha oblata (1)
Cryptantha oxygona (24)
Cryptantha palmeri (10)
Cryptantha paradoxa (1)
Cryptantha paysonii (2)
Cryptantha pterocarya (57)
Cryptantha pterocarya var. cycloptera (17)
Cryptantha pterocarya var. pterocarya (8)
Cryptantha pterocarya var. purpusii (10)
Cryptantha racemosa (29)
Cryptantha rattanii (1)
Cryptantha recurvata (15)
Cryptantha roosiorum (10)
Cryptantha scoparia (7)
Cryptantha similis (11)
Cryptantha simulans (22)
Cryptantha sobolifera (7)
Cryptantha sp. (23)
Cryptantha sparsiflora (6)
Cryptantha spiculifera (1)
Cryptantha spithamaea (9)
Cryptantha subretusa (11)
Cryptantha thyrsiflora (4)
Cryptantha torreyana (29)
Cryptantha torreyana var. torreyana (4)
Cryptantha traskiae (8)
Cryptantha tumulosa (19)
Cryptantha utahensis (37)
Cryptantha virgata (17)
Cryptantha virginensis (51)
Cryptantha watsonii (15)
Cryptantha welshii (7)
Cryptantha wigginsii (3)
Cryptanthus sp. (1)
Cryptocarpus pyriformis (1)
Cryptocarya alba (4)
Cryptocarya latifolia (3)
Cryptocereus anthonyanus (2)
Cryptogramma acrostichoides (45)
Cryptogramma cascadensis (15)
Cryptogramma crispa (6)
Cryptogramma crispa ssp. acrostichoides (1)
Cryptogramma stelleri (3)
Cryptomeria japonica (28)
Cryptonemia (12)
Cryptonemia lomation (1)
Cryptonemia umbraticola (11)
Cryptostegia grandiflora (24)
Crysolepis sempervirens (1)
Crysophila stauracantha (4)
Ctenanthe burle-marxii (1)
Ctenanthe lubbersiana (1)
Ctenidium molluscum (11)
Ctenitis erinacea (1)
Ctenitis sciaphila sciaphila (11)
Ctenodon acapulcensis (1)
Ctenodon compactus (3)
Ctenodon elegans var. elegans (1)
Ctenodon pinetorus (2)
Ctenopterella blechnoides (16)
Ctenopteris obovata (1)
Cucumis anguria (1)
Cucumis dipsaceus (13)
Cucumis melo (12)
Cucumis melo var. cantalupensis (1)
Cucumis melo var. dudaim (3)
Cucumis melo var. inodorus (3)
Cucumis melo var. reticulatus (1)
Cucumis metuliferus (4)
Cucumis myriocarpus (10)
Cucumis sativus (16)
Cucumis zeyheri (1)
Cucurbita cordata (11)
Cucurbita ficifolia (9)
Cucurbita foetidissima (76)
Cucurbita maxima (26)
Cucurbita mixta (1)
Cucurbita moschata (14)
Cucurbita palmata (98)
Cucurbita pepo (57)
Cucurbita pepo ssp. pepo (6)
Cucurbita pepo var. delicata (1)
Cucurbita pepo var. giromontina (2)
Cucurbita pepo var. ovifera (15)
Cucurbita pepo var. turbinata (2)
Cucurbita sp. (8)
Culcitium canescens (2)
Cullumia squarrosa (2)
Cuminum cyminum (2)
Cumulopuntia fulvicoma (2)
Cumulopuntia ignescens (1)
Cumulopuntia pentlandii (2)
Cuniculotinus gramineus (22)
Cunila origanoides (1)
Cunninghamia konishii (7)
Cunninghamia lanceolata (36)
Cunnonia capensis (4)
Cunonia capensis (9)
Cupaniopsis anacardioides (24)
Cuphea aequipetala (3)
Cuphea hyssopifolia (6)
Cuphea hyssopiolia (1)
Cuphea ignea (10)
Cuphea leptopoda (2)
Cuphea llavea (7)
Cuphea micropetala (2)
Cuphea ramosissima (2)
Cuphea sessilifolia (9)
Cuphea subuligera (1)
Cuphea vermillionaria (1)
Cuphea wrightii (4)
Cupressocyparis leylandii (3)
Cupressus arizonica (6)
Cupressus arizonica var. glabra (9)
Cupressus arizonica var. nevadensis (1)
Cupressus bakeri (21)
Cupressus cashmeriana (3)
Cupressus duclouxiana (2)
Cupressus forbesii (11)
Cupressus funebris (6)
Cupressus goveniana (1)
Cupressus goveniana ssp. pygmaea (1)
Cupressus guadalupensis (1)
Cupressus lusitanica (12)
Cupressus macnabiana (1)
Cupressus macrocarpa (3)
Cupressus montana (1)
Cupressus nootkatensis (6)
Cupressus pygmaea (2)
Cupressus revealiana (3)
Cupressus sargentii (4)
Cupressus sempervirens (11)
Cupressus sp. (11)
Cupressus stephensonii (1)
Cupressus x-leylandica (3)
Curcubita pepo (2)
Curculigo crassifolia (1)
Curculigo orchioides (1)
Curcuma aeruginosa (1)
Curcuma alismatifolia (1)
Curcuma longa (6)
Curcuma pseudomontana (1)
Curtisia dentata (13)
Cuscuta americana (1)
Cuscuta brachycalyx (15)
Cuscuta california var. apiculata (4)
Cuscuta californica (33)
Cuscuta californica var. apodanthera (1)
Cuscuta californica var. californica (54)
Cuscuta californica var. papillosa (23)
Cuscuta campestris (45)
Cuscuta choisiana (1)
Cuscuta cuspidata (2)
Cuscuta denticulata (21)
Cuscuta gracillima var. esquamata (1)
Cuscuta gronovii (2)
Cuscuta howelliana (22)
Cuscuta indecora (3)
Cuscuta indecora var. indecora (5)
Cuscuta japonica (6)
Cuscuta jepsonii (51)
Cuscuta leptantha (4)
Cuscuta occidentalis (15)
Cuscuta pacifica (21)
Cuscuta pacifica var. pacifica (61)
Cuscuta pentagona (3)
Cuscuta polygonorum (1)
Cuscuta psorothamnensis (6)
Cuscuta reflexa (4)
Cuscuta salina (35)
Cuscuta sp (1)
Cuscuta sp. (36)
Cuscuta subinclusa (74)
Cuscuta suksdorfii (6)
Cuscuta tuberculata (1)
Cuscuta umbellata (1)
Cuscuta veatchii (2)
Cuscuta warneri (2)
Cusickiella douglasii (39)
Cusickiella quadricostata (21)
Cussonia natalensis (8)
Cussonia paniculata (10)
Cussonia paniculata ssp. sinuata (17)
Cussonia sphaerocephala (2)
Cussonia spicata (28)
Cussonia thyrsiflora (2)
Cutandia maritima (3)
Cyamopsis tetragonoloba (2)
Cyananthus lobatus ssp. giant form (4)
Cyananthus microphyllus (2)
Cyanea degeneriana (12)
Cyanea hardyi (3)
Cyanea hirtella (12)
Cyanea pilosa (9)
Cyanea shipmanii (20)
Cyanea stictophylla (16)
Cyanea tritomantha (13)
Cyanella alba (4)
Cyanella hyacinthoides (2)
Cyanella lutea (1)
Cyanicula gemmata (2)
Cyanidium caldarium (3)
Cyanoglossum creticum (6)
Cyanotis foecunda (3)
Cyanotis somalensis (3)
Cyanthillium cinereum (6)
Cyathea acuminata (1)
Cyathea aemula (1)
Cyathea albidopaleata (7)
Cyathea arborea (2)
Cyathea ars (1)
Cyathea australis (1)
Cyathea bartlettii (1)
Cyathea brassii (1)
Cyathea brownii (4)
Cyathea capensis (10)
Cyathea chamaedendron (2)
Cyathea chontilla (1)
Cyathea convergens (2)
Cyathea cooperi (5)
Cyathea diabolica (2)
Cyathea divergens var. tuerckheimii (3)
Cyathea epaleata (39)
Cyathea frigida (2)
Cyathea guentheriana (2)
Cyathea humilis (2)
Cyathea laciniata (1)
Cyathea liesneri (2)
Cyathea media (1)
Cyathea medullaris (3)
Cyathea mexiae (4)
Cyathea microlepidota (3)
Cyathea neblinae (1)
Cyathea paleata (1)
Cyathea parksiae (2)
Cyathea plagiostegia (1)
Cyathea planadae (1)
Cyathea poeppigii (4)
Cyathea polliculi (1)
Cyathea praeceps (1)
Cyathea praetermissa (1)
Cyathea puberula (1)
Cyathea pulchra (1)
Cyathea rugosula (1)
Cyathea schizolepis (4)
Cyathea setchellii (1)
Cyathea smithii (1)
Cyathea sp. (3)
Cyathea zongoensis (2)
Cyathodes parviflora (2)
Cyathula prostrata (2)
Cycas circinalis (1)
Cycas debaoensis (1)
Cycas media (3)
Cycas megacarpa (7)
Cycas micronesica (3)
Cycas revoluta (30)
Cycas sp. (5)
Cycas taitungensis (2)
Cycas thouarsii (3)
Cyclachaena xanthiifolia (4)
Cycladenia humilis (22)
Cycladenia humilis var. humilis (31)
Cycladenia humilis var. jonesii (2)
Cycladenia humilis var. venusta (18)
Cyclamen africanum (2)
Cyclamen coum (3)
Cyclamen coum ssp. album (1)
Cyclamen creticum (8)
Cyclamen hederifolium (21)
Cyclamen intaminatum (2)
Cyclamen libanoticum (4)
Cyclamen mirable (1)
Cyclamen parviflorum (2)
Cyclamen persicum (23)
Cyclamen pseudibericum (5)
Cyclamen purpurascens (7)
Cyclamen repandum (29)
Cyclamen sp. (3)
Cyclanthera pedata (4)
Cyclodium akawaiorum (1)
Cycloloma atriplicifolium (19)
Cyclophorus aglaophyllus (1)
Cyclophorus dimorphus (1)
Cyclophorus micraster (1)
Cyclophorus stellatus (1)
Cyclophyllum barbatum (3)
Cyclosorus boholensis (1)
Cyclosorus cataractorum (1)
Cyclosorus dentata (24)
Cyclosorus edanyoi (1)
Cyclosorus glaber (1)
Cyclosorus interruptus (1)
Cyclosorus maemonensis (1)
Cyclospermum leptophyllum (41)
Cycnium adonense (1)
Cycnium cameronianum (6)
Cycnium tubulosum (12)
Cydonia oblonga (16)
Cygnoglossum grande (3)
Cylindropuntia acanthocarp (2)
Cylindropuntia acanthocarpa (43)
Cylindropuntia acanthocarpa var. coloradensis (21)
Cylindropuntia alcahes ssp. burrageana (7)
Cylindropuntia alcahes ssp. mcgillii (3)
Cylindropuntia arbuscula (4)
Cylindropuntia bernardina (1)
Cylindropuntia bigelovii (197)
Cylindropuntia bigelovii var. bigelovii (8)
Cylindropuntia bigelovii x ganderi (3)
Cylindropuntia californica (3)
Cylindropuntia californica var. californica (12)
Cylindropuntia californica var. parkeri (75)
Cylindropuntia cholla (23)
Cylindropuntia chuckwallensis (89)
Cylindropuntia echinocarpa (171)
Cylindropuntia fosbergii (45)
Cylindropuntia fulgida (24)
Cylindropuntia fulgida var. fulgida (10)
Cylindropuntia fulgida var. mamillata (6)
Cylindropuntia ganderi (29)
Cylindropuntia ganderi var. catavinensis (4)
Cylindropuntia ganderi var. ganderi (52)
Cylindropuntia imbricata (24)
Cylindropuntia imbricata var. imbricata (8)
Cylindropuntia leptocaulis (39)
Cylindropuntia molesta (11)
Cylindropuntia multigeniculata (4)
Cylindropuntia munzii (12)
Cylindropuntia prolifera (63)
Cylindropuntia ramosissima (121)
Cylindropuntia sp. (5)
Cylindropuntia spinosior (21)
Cylindropuntia tesajo (12)
Cylindropuntia thurberi (2)
Cylindropuntia tunicata (1)
Cylindropuntia versicolor (23)
Cylindropuntia viridiflora (4)
Cylindropuntia whipplei (6)
Cylindropuntia wolfii (55)
Cylindropuntia xfosburgii (1)
Cymatopleura elliptica (1)
Cymbalaria muralis (38)
Cymbalaria pallida (2)
Cymbalaria sp. (1)
Cymbidium (20)
Cymbidium grandiflorum (1)
Cymbidium madidum (2)
Cymbidium sp. (1)
Cymbidium tigrinum (1)
Cymbopetalum brasiliense (11)
Cymbopogon citratus (5)
Cymbopogon hirtus (2)
Cymbopogon refractus (3)
Cymophyllus fraserianus (1)
Cymopterus aboriginum (43)
Cymopterus acaulis var. fendleri (5)
Cymopterus alpinus (2)
Cymopterus bakeri (4)
Cymopterus bulbosus (1)
Cymopterus cinerarius (33)
Cymopterus corrugatus (5)
Cymopterus davisii (4)
Cymopterus deserticola (27)
Cymopterus foeniculaceus (6)
Cymopterus gilmanii (40)
Cymopterus globosus (24)
Cymopterus glomeratus var. fendleri (3)
Cymopterus hendersonii (1)
Cymopterus humilis (2)
Cymopterus ibapensis (4)
Cymopterus lemmonii (16)
Cymopterus longipes var. ibapensis (4)
Cymopterus longipes var. longipes (9)
Cymopterus montanus (1)
Cymopterus multinervatus (29)
Cymopterus newberryi (5)
Cymopterus nivalis (7)
Cymopterus panamintensis var. acutifolius (28)
Cymopterus panamintensis var. panamintensis (11)
Cymopterus petraeus (3)
Cymopterus purpurascens (35)
Cymopterus purpureus (3)
Cymopterus ripleyi (27)
Cymopterus ripleyi var. saniculoides (6)
Cymopterus terebinthinus (40)
Cymopterus terebinthinus var. californicus (50)
Cymopterus terebinthinus var. petraeus (29)
Cynanchum acutum (9)
Cynanchum angustifolium (2)
Cynanchum arizonicum (4)
Cynanchum blodgettii (1)
Cynanchum peninsulare (2)
Cynanchum pringlei (11)
Cynanchum racemosum var. unifarium (6)
Cynanchum rossicum (4)
Cynanchum utahense (2)
Cynara cardunculus (55)
Cynara cardunculus ssp. cardunculus (19)
Cynara cardunculus ssp. flavescens (22)
Cynara cardunculus var. cardunculus (4)
Cynara scolymus (2)
Cynodia oblonga (1)
Cynodon dactylon (40)
Cynoglossum amabile (7)
Cynoglossum cheirifolium (9)
Cynoglossum creticum (6)
Cynoglossum grande (161)
Cynoglossum occidentale (33)
Cynoglossum officinale (58)
Cynoglossum virginianum (3)
Cynosurus cristatus (16)
Cynosurus echinatus (60)
Cypella coelestis (4)
Cyperus acuminatus (6)
Cyperus alterniflorus (1)
Cyperus alternifolius (1)
Cyperus amabilis (3)
Cyperus bipartitus (6)
Cyperus cyperinus (1)
Cyperus cyperoides (1)
Cyperus dentatus (1)
Cyperus difformis (23)
Cyperus dioicus (8)
Cyperus eragrostis (73)
Cyperus erythrorhizos (12)
Cyperus esculentus (26)
Cyperus flavescens (6)
Cyperus fuscus (10)
Cyperus haspan (4)
Cyperus involucratus (9)
Cyperus iria (6)
Cyperus javanicus (1)
Cyperus laevigatus (15)
Cyperus lupulinus ssp. macilentus (4)
Cyperus macrophyllus (3)
Cyperus niger (23)
Cyperus odoratus (27)
Cyperus papyrus (19)
Cyperus parishii (3)
Cyperus percamenthus (1)
Cyperus rotundus (11)
Cyperus sp. (12)
Cyperus sphacelatus (1)
Cyperus squarrosus (26)
Cyperus strigosus (16)
Cyperus umbraculiferus (2)
Cyphia heterophylla (1)
Cyphomandra betacea (6)
Cyphomeris crassifolia (9)
Cyphomeris gypsophiloides (17)
Cyphostemma currorii (6)
Cyphostemma juttae (13)
Cyphostemma uter (4)
Cypripedium acaule (46)
Cypripedium calceolus (50)
Cypripedium calceolus ssp. pubescens (4)
Cypripedium calceolus var. parviflorum (17)
Cypripedium californicum (124)
Cypripedium candidum (2)
Cypripedium fasciculatum (68)
Cypripedium guttatum (7)
Cypripedium molle (2)
Cypripedium montanum (146)
Cypripedium parviflorum (14)
Cypripedium parviflorum var. makasin (11)
Cypripedium parviflorum var. parviflorum (1)
Cypripedium parviflorum var. pubescens (4)
Cypripedium parvifolium (2)
Cypripedium pubescens (7)
Cypripedium reginae (23)
Cypselea humifusa (4)
Cyrilla racemiflora (1)
Cyrtandra giffardii (8)
Cyrtandra lillianae (1)
Cyrtandra longifolia (5)
Cyrtandra lysiosepala (5)
Cyrtandra platyphylla (8)
Cyrtandra species (1)
Cyrtandra taviunensis (1)
Cyrtanthus angustifolius (3)
Cyrtanthus brachyscyphus (3)
Cyrtanthus spiralis (2)
Cyrtocarpa edulis (19)
Cyrtocarpa edulis var. edulis (8)
Cyrtochilum monachicum (1)
Cyrtochilum serratum (1)
Cyrtococcum oxyphyllum (2)
Cyrtomium falcatum (9)
Cyrtonium falcatum (3)
Cyrtostachys renda (8)
Cystopteris alpina (8)
Cystopteris bulbifera (9)
Cystopteris douglasii (6)
Cystopteris fragilis (71)
Cystopteris montana (5)
Cystopteris regia (2)
Cystoseira osmundacea (3)
Cytinus hypocistis (1)
Cytinus hypocistis ssp. clusii (9)
Cytisus hybrid (2)
Cytisus palmensis (1)
Cytisus procumbens (1)
Cytisus proliferus (1)
Cytisus pseudoprocumbens (6)
Cytisus purgans (3)
Cytisus purpureus (3)
Cytisus scoparius (51)
Cytisus scoparius ssp. scoparius (42)
Cytisus scoparius ssp. scoparius f. andreanus (26)
Cytisus scoparius subsp. scoparius (7)
Cytisus sp. (1)
Cytisus spinescens (3)
Cytisus striatus (16)