TRIACTINA Berger, 1930
Synonyms :
Triactina verticillata Hooker f. & Thomson (1858)
Sedum verticillatum (Hooker f. & Thomson) Hamet (1913) (nom. illeg. Art. 53.1)
Distribution : Bhutan, Nepal, Sikkim, Tibet, China.
Description (by 't Hart & Bleij in IHSP, 2003) :
Perennial or biennial herbs with or without short sterile stems.
Leaves opposite or whorled, spatulate-oblong, obtuse or slightly retuse, shortly spurred, subpetiolate, flat.
Flowering branches rather weak and fleshy with leaves in whorls of 3.
Inflorescences lax corymbs, long pedunculate, bracts 5 – 10 mm.
Flowers 5-merous, but with only 3 or 4 carpels, sepals broadly sessile, broadly linear to oblong, ± 1 mm, petals basally connate for up to 1 mm, broadly oblong, subobtuse, very shortly mucronate or emarginate, pale yellowish, 4 – 6.5 mm, nectar scales broadly linear, fruit subdivergent, basally connate for ± 2 mm, with small lips along the sutures, seeds probably reticulate-papillose.
2 subspecies :
Sedum triactina ssp. leptum Fröderström, 1942