TRICARPUM Makino, 1891
Synonym : Sedum tricarpum fa viride Hatusima (1987)
Distribution : Japan (Honshu, Shikoku, Kyushu); gravelly soils in mountains.
Description (by 't Hart & Bleij in IHSP, 2003) :
Perennial herbs with ± creeping stems.
Leaves alternate, clustered at the stem tips, more lax further down, spatulate, rounded, flat, fleshy, 20 – 25 x 5 – 10 mm.
Flowering branches rather stout, 10 – 25 cm.
Inflorescences lax much-branched cymes, bracts oblanceolate or narrowly spatulate.
Flowers 5-merous, but with only 3 – 5 carpels, sepals linear-spatulate to lanceolate, obtuse, petals basally slightly connate, ascending to spreading, narrowly lanceolate, yellow, 6 – 8 mm, long acuminate, nectar scales widely obovate, ± 5 mm, fruits ascending, basally connate, seeds narrowly oblong-ovoid, minutely tuberculate.
Cytology : n = 62.