密锥花鱼藤 mi zhui hua yu teng

Millettia thyrsiflora Bentham in Miquel, Pl. Jungh. 249. 1852; Derris thyrsiflora (Bentham) Bentham.

Lianas or scandent shrubs. Branchlets glabrous or very sparsely pilose. Leaves 5-9-foliolate; rachis 30-45 cm, in­cluding petiole 8-14 cm; leaflet blades oblong to oblong-lan­ceolate, 10-15 × 3.5-7 cm, subleathery, both surfaces glabrous, secondary veins 5-7 on each side of midvein, base rounded, apex shortly acuminate to sometimes obtuse. Pseudopanicles axillary or terminal, narrowly pyramidal, 12-35 cm, compact, brown or reddish pilose; branches numerous, ascending or spreading; branchlet nodes with several close but not fascicled flowers on a short branchlet. Pedicel very short. Flowers ca. 8 mm. Calyx campanulate, ca. 3 mm, very sparsely pilose, apex truncate or obscurely deltoid toothed. Corolla whitish to pur­plish red, 8-10 mm; standard orbicular, with calluses cordate at base, emarginate at apex. Ovary pilose. Legume oblong, 5-10 × 2.5-3(-4) cm, thin, glabrous, with conspicuous reticulate veins; both sutures with a 3-8 mm wide wing. Seeds 1-3 per legume, oblong-reniform. Fl. May-Jun, fr. Aug-Nov.

Scrub by streams in mountains; low elevations but to ca. 2000 m in Yunnan. Guangdong, S Guangxi, Hainan, S Yunnan [India, Indonesia, Laos, Malaysia, Myanmar, Papua New Guinea, Philippines, Thailand, Vietnam; Pacific islands].