Saxifraga diffusicallosa C. Y. Wu

Herbs perennial, 17-26 cm tall. Stem sparsely brown villous proximally, brown glandular hairy distally. Basal leaves with petiole 1.2-3 cm, abaxially and marginally pale brown villous; leaf blade elliptic to ovate, 10-14 × 4-5 mm, abaxially pilose, sometimes glandular. Proximal cauline leaves similar to basal ones; most distal one sessile, lanceolate to ovate, 5-10 × 1-2.5 mm, glabrous or very sparsely glandular hairy. Inflorescence corymbose, 2.4-6.3 cm, 3-16-flowered; branches 1.3-6 cm, 1-4-flowered; pedicels 0.5-1.5 cm, glabrous or sparsely glandular hairy. Sepals erect to spreading, triangular-ovate to narrowly ovate, 2.4-4.5 × 1.1-1.6 mm, abaxially dark brown glandular hairy, veins 3-7, not confluent at apex, apex subobtuse or acute. Petals yellow, obovate to elliptic, 6-8 × 2.5-4.5 mm, adaxially diffusely 6- or 7-callose, 3-9-veined, base with a claw 0.4-1.5 mm, apex obtuse. Stamens 4.5-5.5 mm. Ovary subsuperior, ovoid, 2-3.5 mm; styles 0.9-1.5 mm. Fl. Aug-Sep.

S Xizang.

* Scrub, screes, rock crevices; 3200-4000 m.

Saxifraga taylorii H. Smith, Bull. Brit. Mus. (Nat. Hist.), Bot. 2: 247. 1960, not Calder & Savile (1959).