Description from Flora of China
Tylophora trichophylla Tsiang.
Herbs. Stems to 3 m, hollow when dried, at first prostrate, apical part sometimes twining, most parts crisp pilose. Petiole 2-5 mm; leaf blade 4-9 × 3.5-8 cm, lowermost suborbicular and flat on ground, upper smaller, ovate, or obovate, abaxially glabrous or uniformly minutely puberulent, base rounded, apex short mucronate or rounded; lateral veins 4-6 pairs. Inflorescences ca. 2 cm; peduncle 5-8 mm; rachis simple, zigzag; cymules sessile, racemelike, dense. Pedicel 1-2.5(-3) cm. Sepals ovate-triangular; glands 5. Corolla yellow, rotate, twice as long as calyx; tube short; lobes oblong. Corona lobes ovate, pouched, apex reaching to base of anthers. Anthers square, appendages rounded; pollinia globose, horizontal. Stigma head flat. Follicles lanceolate, ca. 6 × 1 cm, slightly puberulent. Seeds ovate; coma ca. 2 cm. Fl. May.
Thickets; 200-1000 m. Guangdong, Guangxi, Hainan [India, Nepal].