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Carex atrata ssp. aterrima
Black Alpine-sedge
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Photographer: Dr. Amadej Trnkoczy
ID: 0000 0000 0117 4685 (2017-01-31)Copyright © 2017 Dr. Amadej Trnkoczy
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 8, 2011
latitude 46.33453 longitude 13.83351
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location
Near the top of Mt. Ogradi, 2.087 m (6.850 feet), East part of the East Julian Alps (Gorenjska, Slovenia)notes Slo.: temni šaš - syn.: Carex aterrima Hoppe, Carex atrata L. var. aterrima (Hope) Boott, Carex atrata ssp. aterrima (Hope) Yun Liang (nom. illeg.) - Habitat: alpine grassland, calcareous, skeletal ground; open place, full sun, windy place, exposed to direct rain; altitude 2.087 m (6.800 feet), average precipitations about 3.000 mm/year, average temperature about 0 deg C, alpine phytogeographical region. Substratum: nutrients poor soil. Comment: Carex atrata s.lat. is a large, conspicuous and beautiful sedge known from all Alps and other European mountains, growing in subalpine and alpine elevations. It is easy to recognize it by its large black-brown spikes. Generally two subspecies are known, Carex atrata ssp. atrata and Carex atrata ssp. aterrima (some authors consider both on species level). It is not always easy to distinguish between them since many times plants with intermediated characteristics are found. The main and easy to recognize in field trait is roughness of their stems (particularly of their upper parts). Carex atrata ssp. aterrima, which is also supposed to be larger plant (up to 70 cm tall) of both, has rough stems when touched, while Carex atrata ssp. atrata is glabrous. Plants found 30-45 cm tall; stems distinctly rough; spikes 20 - 26 mm long, the lowest with a 15 mm long stalk (in average), the upper 3-4 spikes densely clustered and with 1-5 mm long stalks; leaves only slightly shorter than flowering stalks; leaves 5-9 mm wide. Ref.: (1) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 2., Haupt (2004), p 828. (2) K. Lauber and G. Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 1404. (3) J. Koopman, Carex Europaea, The Genus Carex L. (Cyperaceae) in Europe, 1., Margraf Publishers (2011), p 50. (4) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p 818. (5) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora für Österreich, Liechtenstein und Südtirol, LO Landesmuseen, Linz, Austria (2005), p 1097.camera Nikon D700/Nikkor Micro 105mm/f2.8
contributor's ID # Bot_532/2011_DSC8535 photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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Black Alpine-sedge (photographer)
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