Description from Flora of China
Sedum sherriffii (H. Ohba) J. P. Kozhevnikov.
Caudex prostrate, apically ascending, terete, 1-2.5 cm in diam. Caudex leaves somewhat dusky when dry, scalelike, triangular-ovate. Flowering stems simple, flabellately fascicled, usually reddish, 10-30 cm × (1.5-)2-4(-6) mm, smooth, deciduous each year. Stem leaves alternate, ascending, oblanceolate to narrowly oblong, 1-3 × 0.2-0.7 cm, adaxially densely mammillate, abaxially mammillate along midvein, base attenuate, margin entire, apex acute. Inflorescences compound cymes; male inflorescences 40-100-flowered; female inflorescences 10-20-flowered. Flowers unisexual, male ones unequally 5-merous; pedicel 2-8 mm, densely mammillate. Petals free, greenish yellow, usually reddish apically, narrowly oblong-oblanceolate, 4-6 × 1-1.5 mm, apex rounded. Stamens 10, longer than petals; antepetalous ones inserted 0.2-0.8 mm from petal base. Nectar scales oblong, apex emarginate. Carpels almost free, 6-12 mm. Styles short. Follicles ca. 8-seeded. Seeds ellipsoid, winged.
Thickets, grassy slopes, moist places, rocks; 4000-5000 m. Xizang [Bhutan, Sikkim].