AETNENSE Tineo, 1845
Synonyms :
Macrosepalum aetnense (Tineo) Palanov (1988)
Sedum tetramerum Trautvetter (1880) / Sedum aetnense ssp. tetramerum (Trautvetter) Hamet (1914) / Sedum aetnense var. tetramerum (Trautvetter) Hamet (1914) / Macrosepalum tetramerum (Trautvetter) Palanov (1988)
Macrosepalum turkestanicum Regel & Schmalhausen (1882) / Sedum turkestanicum (Regel & Schmalhausen) Hamet ex B. Fedtschenko (1915)
Sedum skorpilii Velenovsky (1899)
Sedum korpilii Velenovsky (1899)
Sedum albanicum Beck (1904)
Sedum erythrocarpum Pau (1906)
Sedum aetnense var. genuinum Hamet (1914)
Sedum ekimianum Metzger & Duman (1990)
Sedum aetnense ssp. aranjuezii J.Gonz.Granados (2011)
Distribution : Southern Europe, Turkey (Anatolia), Iran, Near East, also recently cited from Spain and Serbia; usually very local.
Description (by 't Hart & Bleij in IHSP 2003) :
Short-lived small glabrous annual herbs with erect or ascending usually simple branches to 6 cm tall.
Leaves alternate, imbricate and erect-appressed, sessile with a scarious basal spur, conical-oblong, 3 - 5 mm, subacute, terete or semiterete, often with ciliate or denticulate margins, glaucous or dark green.
Inflorescences cymose, usually consisting of 1 cincinnus (large specimens often with 2 or more cincinni), bracts 2, leaf-like, large.
FIowers 4- (or 5-) merous, autogamous, sessile, with 4 or 5 stamens, sepals basally free and spurred, strongly unequal, to 4 mm, acute, semiterete, often with ciliate margins, petals free, oblong, 2 - 3 mm, subacute, white, sometimes tinged red, filaments white, anthers small, yellowish or red.
Cytology : 2n = 26, 52.
Belonging to the monotypic Ser. Macrosepala (Regel & Schmalhausen) Borissova. It was recently also cited from several provinces of Spain (Ríos Ruiz & Al. 1993: 166) and for Serbia (Zlatkovic & Randjelovic 1996).