Sedum fastigiatum J. D. Hooker & Thomson, J. Proc. Linn. Soc., Bot. 2: 98. 1858; Chamaerhodiola fastigiata (J. D. Hooker & Thomson) Nakai; S. quadrifidum Pallas var. fastigiatum (J. D. Hooker & Thomson) Fröderström; Triplostegia pinifolia H. Léveillé.

Caudex simple or few branched, more than 50 × 1-1.5 cm; persistent old flowering stems few or absent. Caudex leaves scalelike, triangular. Flowering stems 4-10, arising from caudex apex, 8-20 cm × 1.2-2 mm, densely leafy. Stem leaves alternate, linear-oblong, linear-lanceolate, elliptic, or oblanceolate, 8-12 × 1-4 mm, margin entire but finely mammillate, apex obtuse. Inflorescences corymbiform, dense, ca. 1 × 2 cm. Flowers unisexual, male ones unequally 5-merous. Sepals linear to narrowly triangular, ca. 3 mm, apex obtuse. Petals red, oblong-lanceolate, ca. 5 × 1.3 mm, apex obtuse. Stamens 10, to 5 mm; antepetalous ones inserted ca. 1 mm from petal base. Nectar scales transversely oblong, apex emarginate. Carpels erect, lanceolate. Styles long. Follicles 7-8 mm, apex ± recurved. Fl. Jun-Aug, fr. Sep.

Rocky slopes; 3500-5400 m. Sichuan, Xizang, Yunnan [Bhutan, India, Kashmir, Nepal, Sikkim].