Umbilicus oreades Decaisne in Jacquemont, Voy. Inde 4(Bot.): 62. 1844; Cotyledon oreades (Decaisne) C. B. Clarke; Sedum piloshanense Fröderström.

Stems simple or branched from base, tufted, 2.5-12 cm. Leaves alternate, gradually larger toward stem apex; leaf blade lanceolate to broadly oblong, 3-9 mm, veins several, base obtuse or 3-lobed spurred, apex acute. Cyme corymbiform, 1- to several flowered. Flowers subsessile, unequally 5-merous. Sepals oblong to obovate-lanceolate, 7-7.5 × 2-2.2 mm, base spurred, margin entire or minutely erose, apex acute. Petals yellow, obovate to obovate-lanceolate, 6-9.8(-12) × 2.5-3.5 mm, base connate for 1.2-1.3(-3) mm, shortly clawed, margin ± minutely erose, apex mucronate. Stamens 10; antesepalous ones 2.5-3.5 mm; antepetalous ones 2.5-3.5 mm, inserted 1-1.5(-3) mm from petal base. Nectar scales nearly linear-spatulate. Carpels erect, lanceolate, base connate for 0.3-0.5(-0.7) mm; ovules many. Seeds obovoid-oblong, minutely mammillate. Fl. Jul-Aug, fr. Sep-Oct.

Grasslands, rocks on slopes; 3000-4500 m. SE Xizang, NW Yunnan [Bhutan, India, Myanmar, N Pakistan, Sikkim].