Platystemma violoides Wall.

Stems 3-9(-12) cm, sparsely white pubescent to glabrescent. Leaf blade broadly ovate, 1.5-8 X 1.8-8 cm, adaxially white appressed pubescent, abaxially sparsely white pubescent, base cordate to auriculate, margin coarsely dentate, apex broadly acute to obtuse; lateral veins subpalmate, 3-6 on each side of midrib. Peduncle 1-4 cm, sparsely glandular pubescent; bracts subulate, 1-3 X 0.5-1 mm. Calyx 2.7-3.7 mm; tube ca. 0.7 mm; segments ovate-oblong, 2-3 X 1-1.5 mm, outside sparsely puberulent to glabrous. Corolla purple-red, throat spotted adaxially, adaxial lobes yellow with purple spots, 0.7-1.3 cm; tube ca. 3 mm; limb distinctly 2-lipped; adaxial lip 3.5-4.5 mm, lobes ovate, 2-2.5 X 2-3 mm; abaxial lip 5-8 mm, lobes ovate, 3-5.5 X 3-3.5 mm. Filaments 1-2 mm; staminode ca. 0.25 mm. Pistil exserted, glabrous; ca. 3 mm. Style 6.5-10 mm. Capsule partially enclosed in persistent calyx, 5-7 mm.

Himalaya (Simla to Bhutan).

S Xizang (Nyalam Xian) [Bhutan, N India, Nepal].

1800-3400 m

Shady and damp rocks in valleys or dry cliffs; 2300-3200 m.