杯药草 bei yao cao

Cotylanthera yunnanensis W. W. Smith.

Plants 5-10 cm tall. Stems erect, simple, terete. Leaves 3-6 pairs; leaf blade 1.5-2.5 × 0.7-1 mm, apex acute. Flower terminal. Pedicel terete, 6-10 mm, glabrous. Calyx 4-6 mm; lobes triangular, apex obtuse, midvein distinct. Corolla white, pale blue, or blue, 1-1.2 cm; lobes narrowly oblong, margin entire, apex obtuse. Filaments linear, 2.8-4 mm; anthers sagittate, 2.5-4 mm, slightly curved. Ovary ovoid-ellipsoid, 1.8-2 mm. Style linear, 5.5-8 mm. Capsules subglobose.

Forests; 1700-2400 m. Sichuan, Xizang, Yunnan [Sikkim].