Sedum

ROSULATOBULBOSUM Koidzumi, 1938

Distribution : Japan (Hachijojima and Amamioshima Islands), Korea.

 

 

Description (according to IHSP, 2003) :

 

Perennial or annual herbs with axillary many-leaved bulbils and decumbent to ascending tufted stems, often branched in the upper part, 6 -20 cm tall.

 

Leaves alternate, obovate, obtuse, spurred, sometimes with irregular margins, fleshy but flat, ± 10 mm.

 

Inflorescences cymes with 1 - 3 cincinni, these sometimes forked, bracts leaf-like.

 

FIowers 5-merous, (sub-) sessile, sepals basally free, shortly spurred, unequal, oblong to obovate-oblong, obtuse, mamillate, fleshy, 2 - 6 x 0,5 - 2 mm, suberect, petals lanceolate, shortly and narrowly mucronate, yellow, 3,5 - 5 mm, filaments yellow, anthers orange-yellow.

 

Cytology : 2n = 38, ± 56

 

Very close to and probably identical with S. bulbiferum (Ohwi 1965: 497).

 

See also "Sedum rosulatobulbosum & S. bulbiferum" by Ray Stephenson

 

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