Rhodiola stapfii

Caudex leaves scalelike, triangular, 7-10 × 2.4-4 mm, base broadened, apex acute. Flowering stems simple, erect, 1.4-3.5 cm. Middle stem leaves 5- or 6-verticillate; pseudopetiole 2-3 mm; leaf blade ovate to ovate-oblong, 8-15 × 4-7 mm, base abruptly narrowed, margin entire, apex subobtuse. Inflorescences umbelliform cymes, 1-6-flowered; peduncle ca. 5 mm, shorter than pedicels; bracts absent. Flowers unisexual, unequally 5-merous; pedicel 1-1.3 cm. Sepals linear-triangular to narrowly triangular, 2.5-3.5 mm, base connate, apex obtuse. Petals red, obovate to oblong, 2.5-3.5 × 1.4-1.7 mm, margin ± erose. Nectar scales subquadrangular, 0.6-0.8 × 0.4-0.6 mm, apex obtuse. Carpels ovoid-lanceolate, base connate for ca. 1 mm. Styles ca. 0.5 mm. Seeds brown, oblong, 0.5-0.8 mm. Fl. Aug-Sep.

S Xizang [Bhutan, NE India].

Grassland slopes; 2900-5000 m.

Sedum stapfii Raymond-Hamet, Bull. Misc. Inform. Kew 1913: 156. 1913.