灰毛鸡血藤 hui mao ji xue teng

Millettia cinerea Bentham in Miquel, Pl. Jungh. 249. 1852.

Shrubs, scandent, to 6 m. Stems terete, rough, ridged, gla­brescent. Leaves 5-foliolate; rachis 15-25 cm, including petiole 3-4 cm; stipels ca. 4 mm; petiolules ca. 4 mm; leaflet blades obovate-elliptic, basal pair ca. 5.5 × 3 cm, lateral pair and ter­minal one ca. 15 × 7 cm with laterals rather smaller than termi­nal, papery, abaxially sparsely hirsute and particularly evident on veins, adaxially glabrous except midvein, base broadly cune­ate, rounded, or rarely subcordate, apex acute. Panicles termi­nal, 10-15 cm; flowering branchlets spreading to 6 cm, with dense appressed trichomes. Flowers 1.2-1.6 cm. Corolla red to mauve; standard ovate, outside rusty sericeous, basally thick­ened and emarginate. Ovary shortly stipitate, tomentose, with 5-7 ovules. Legume linear-oblong, ca. 13 × 2 cm, inflated but contracted between seeds, densely gray pubescent. Seeds 1-4 per legume, dark violet, ellipsoid, 1.4-1.8 cm. Fl. Feb-Jul, fr. Aug-Nov.

Secondary evergreen broad-leaved forests by ravines; 500-1200 m. SW Sichuan, SE Xizang, S Yunnan [Bangladesh, Bhutan, India, Myanmar, Nepal, Thailand].