Image of Sedum atratum ssp. carinthiacum

Description:

Slo.: Koroka črnikasta homulica - Habitat: Stony upland grassland, roadside of an alpine road, sandy ground, open place, full sun, exposed to precipitations, average precipitations ~3.000 mm/year, average temperature 1-3 deg C, elevation 1.900 m (6.250 feet), alpine phytogeographical region. - Substratum: sandy soil, among mosses. - Comment: This is an interesting endemic plant known in the Alps with certainty only from south Austria (South Tirol, Krnten) and Slovenian Alps. Its exact taxonomy and distribution is still to be researched (Ref.:(1)). In Austria it is considered quite rare. Outside the Alps it grows also in parts of Balkan Peninsula. Its whitish petals and more yellow-green appearance of the whole plant distinguish it from more common and almost entirely reddish 'sister' Sedum atratum. ssp. atratum. However, many times plants found are somewhere in between and it is hard to decide to which subspecies they belong. - Ref.: (1) M.A.Fischer, W.Adler, K.Oswald, Exkursionsflora Oesterreich Liechtenstein, Suedtirol, LO Landesmuseen, Linz, Austria (2005), p 400. (2) A.Martinčič et all., Mala Flora Slovenije, Tehnična Zaloba Slovenije (2007), p 237.