秃茎虎耳草 tu jing hu er cao

Stem purple after drying, slender, 2.5-6 cm tall, glabrous. Stolons arising from axils of median cauline leaves, lilac, ca. 22 cm, glabrous. Leaves sessile, aggregated proximally and distally in stem, remote near middle of stem, oblong or elliptic-oblong to spatulate, apex obtuse or subacute; proximal and median leaves 4-8 × 3-4 mm, glabrous; distal leaves lilac, ca. 1.2 cm × 3-4 mm, shortly glandular hairy. Flower solitary or cyme 2-flowered; pedicel lilac, 1.5-8 mm, purple shortly glandular hairy; hypanthium broadly mitriform, ca. 1.5 mm, sparsely glandular hairy. Sepals elliptic to triangular or broadly ovate, 2.5-3 × 1.5-2.8 mm, purple glandular hairy, 3-veined, apex obtuse. Petals yellow, broadly obovate, 3-3.2 × 2-2.6 mm, 5-veined, apex obtuse. Stamens ca. 2.8 mm. Ovary subinferior, broadly conical, ca. 2 mm above hypanthium; styles short. Fl. Jul-Aug.

4000-4600 m. S Xizang (Nêdong Xian, Yadong Xian) [Bhutan, Nepal, Sikkim].