148. Saxifraga nanella Engler & Irmscher, Bot. Jahrb. Syst. 50(Beibl. 144): 44. 1914.
光缘虎耳草 guang yuan hu er cao
Herbs perennial, cespitose, 1.2-4 cm tall. Shoots branched, sometimes forming cushions. Flowering stem brown glandular hairy. Shoots with terminal leaves aggregated into a rosette. Leaves subspatulate to suboblong or subovate, 3-8 × 1.5-3 mm, subcarnose, both surfaces glabrous, margin glandular ciliate, glabrous, or proximally sparsely setose-ciliate, apex obtuse, glabrous. Flower solitary or cyme 2-5-flowered; pedicels glandular hairy or glabrate. Sepals spreading to reflexed, ovate to broadly so, 1.5-2.5 × 1.2-2 mm, carnose, abaxially glandular hairy or glabrous, adaxially and marginally glabrous, veins 3-5, partly or fully confluent at apex, apex obtuse. Petals yellow, proximally orange spotted, elliptic to ovate, 4.1-5 × 2-2.2 mm, 2-callose or not callose near base, 5-veined, base with a claw 0.5-0.6 mm, apex obtuse or acute. Stamens ca. 3.5 mm. Ovary subsuperior, broadly ovoid, ca. 3 mm; styles ca. 1 mm. Fl. Jul-Aug.
Alpine meadows, alpine scrub meadows, rock crevices; 3000-5800 m. Qinghai, S Xinjiang, Xizang, NW Yunnan [Nepal].
The following two varieties are possibly not distinct.
