Description from Flora of China
Sedum mosoynense Franchet; S. obtusipetalum subsp. danyanum H. Ohba.
Herbs biennial, glabrous. Roots carrot-shaped. Stems branched, erect, 5-15 cm. Basal leaves crowded, soon withering but persistent; leaf blade broadly lanceolate to lanceolate-oblong, 6-10 × 1.7-2.5 mm, base truncately spurred, apex obtuse. Cyme corymbiform, dense; bracts broadly lanceolate to lanceolate-oblong. Flowers unequally 5-merous; pedicel to 5 mm. Sepals suboblong, 3.5-5 × 1.1-1.8 mm, base obtusely spurred, apex obtuse and mammillate. Petals yellow, oblong, 5-6.5 × 1.3-1.7 mm, base connate for 0.4-1 mm and narrowed, apex subemarginate and mammillate. Stamens 10; antesepalous ones 4.5-5 mm; antepetalous ones inserted 1-2 mm from petal base. Nectar scales subquadrangular to linear-spatulate, 0.4-0.6 mm, apex abruptly expanded, obtuse to retuse. Carpels oblong, 5-6 mm, base connate for ca. 1 mm. Follicles many seeded. Seeds obovoid, ca. 0.5 mm, minutely mammillate. Fl. Aug-Oct, fr. Sep-Nov.
Rocks on slopes in Abies forests and in valleys, moist soil and sandy places on slopes; 2000-3700 m. SW Sichuan, NW Yunnan [Nepal].