华扁豆 hua bian dou

Dolichos lagopus Dunn, J. Linn. Soc., Bot. 35: 490. 1903.

Stems and petiole densely pubescent with yellow hairs. Stipules ca. 3 mm; petiole 4-10 cm; leaflets papery, ovate or rhombic, 4-10 × 2.5-7 cm, hirsute on both surfaces, veins elevated adaxially, base obtuse, apex acuminate. Racemes axil­lary, shorter than petiole. Calyx ca. 1 cm, hirsute with gray or yellow hairs; lobes linear-lanceolate, ca. 6 mm. Corolla purple; standard suborbicular, ca. 1.3 cm (including claw); wings and keel as long as standard. Filament tube ca. 1 cm. Legumes 5.5-6.5 × ca. 0.6 cm, densely pilose with yellowish bristly hairs. Seeds 3-10, black, ca. 4 × 3 mm.

Forests, thickets; 100-1700 m. Guangxi, Hainan, Yunnan [Malay­sia (Sarawak), Thailand].