Saxifraga rupestris T. C. Ku (1989), not Salisbury (1796, nom. illeg., included S. hypnoides Linnaeus); S. setulosa C. Y. Wu; S. yuana Zhmylev.

Herbs perennial, 5-6 cm tall. Stem brown glandular villous. Basal leaves with petiole 4-10 mm, glandular villous at margin; leaf blade ovate to oblong, 3-4 × 1.5-1.6 mm, adaxially and marginally sparsely brown glandular villous, apex acute with 1 long, aristate, glandular hair. Proximal cauline leaves with petiole 1-4 mm, glandular villous at margin; leaf blade lanceolate to oblong, ca. 5 × 1.6 mm, adaxially and marginally glandular villous; distal leaves subsessile, leaf blade oblong, ca. 4 × 1.1 mm, margin glandular villous, apex with 1 aristate, glandular, villous hair. Flower solitary; pedicel 7-10 mm, crisped glandular villous. Sepals spreading, elliptic, abaxially and marginally glandular hairy, veins 3(-6), not confluent at apex, apex obtuse. Petals yellow, elliptic to obovate, ca. 5 × 3.1-3.6 mm, 4-callose near base, 5-veined, base abruptly contracted into a claw ca. 0.5 mm, apex obtuse. Stamens 3.5-4 mm. Ovary subsuperior, ovoid, ca. 2.1 mm; styles ca. 0.8 mm. Fl. Aug-Oct.

* Alpine rock crevices; 3700-4000 m. NW Yunnan (Dêqên Xian, Gongshan Drung-Nu Zu Zizhixian).