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Verbascum chaixii ssp. austriacum
Austrian Mullein
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Photographer: Dr. Amadej Trnkoczy
ID: 0000 0000 0716 3690 (2016-07-31)Copyright © 2016 Dr. Amadej Trnkoczy
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 24, 2016
latitude 46.35971 longitude 13.70049
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location
Lower Trenta valley, between villages Soča and Trenta, right bank of river Soča, Na Melu place, former pasture between Trenta 2b cottage and abandoned farmhouse Strgulc, East Julian Alps (Posočje, Slovenia)notes Slo.: avstrijski lučnik - syn.: Verbascum austriacum Roem. & Schult - Habitat: abandoned alpine pasture partly overgrown with bushes; moderately inclined foot of a mountain, southeast aspect; calcareous, skeletal, colluvial ground, sparsely overgrown with grasses; sunny, dry and warm place; elevation 615 m (2.020 feet); average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, alpine phytogeographical region. Comment: Taxonomic status of Verbascum chaixii spp. austriacum is not yet agreed upon. Most sources consider it as a subspecies of Verbascum chaixii s.lat. (a parallel to Verbascum chaixii spp. chaixii), some treat it on species level. This East European plant can be over one meter tall. Species Verbascum chaixii spp. austriacum has a few traits, which make its identification among (other twelve Verbascum species growing in Slovenia) not difficult. Ground leaves are stalked and cuneate (wedge-shaped, tapering to a point at the base) with crenate (not sharply toothed) edge, stalk leaves are lanceolate, all stamens in a flower are of equal length and shape and are conspicuous hairy. Hairs are violet and bearing noticeably thicker ends like a kind of glands (see picture no.9). Sometimes and superficially the plant looks very similar to much more common Dark mullein (Verbascum nigrum). However the latter has no 'glands' on stamens' hairs and its ground leaves are cordate (heart-shaped, with the notch) or at least rounded at the base. Also flowers stalks are longer (5-12 mm), while flowers of Verbascum chaixii spp. austriacum have only 3-5 mm long stalks. Herbarium: Herbarij Biološkega Inštituta Jovan Hadži, SRC ZASU, Index Herbariorum LJS. Ref.: (1) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora für Österreich, Liechtenstein und Südtirol, LO Landesmuseen, Linz, Austria (2005), p 722. (2) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p 549. (3) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 2., Haupt (2004), p 194.camera Nikon D700/Nikkor Micro 105mm/f2.8
contributor's ID # Bot_990/2016_DSC3943 photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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Austrian Mullein (photographer)
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