Lindenbergia grandiflora (Buch.-Ham. ex D. Don) Benth.

Annuals, scandent, much branched, densely pilose. Branches slender, flexuous, 15-80 cm. Leaves opposite; petiole to 7 cm; leaf blade ovate, to 20 cm below, noticeably decreasing in size upward, margin undulate and serrate; lateral veins 6-10 on each side of midrib. Inflorescences spicate, lax, to 25 cm. Flowers subsessile, solitary from bract axils. Calyx 7-8 mm, glandular hairy; lobes equal, spreading flat, orbicular, apex obtuse. Corolla golden yellow, to 3 cm; tube 2-3 X as long as calyx, sparsely hairy; throat with 2 oblong red-punctate plaits; lower lip broader than wide, to 2.5 cm, lateral lobes oblong, middle lobe smaller than other lobes, orbicular, and emarginate; upper lip short and orbicular, emarginate. Filaments hairy below middle. Ovary sericeous. Capsule ovoid, apex exserted from persistent calyx. Seeds ca. 0.5 mm.

Himalaya (Almora to Bhutan), Assam, Tibet, Burma, W. China.

700-2400 m

S Xizang [Bhutan, India (Darjeeling), Nepal, Sikkim].

Stemodia grandiflora Buchanan-Hamilton ex D. Don, Prodr. Fl. Nepal. 89. 1825.