褐毛野豌豆 he mao ye wan dou

Herbs annual, 20-60(-100) cm tall, densely yellow to brown villous. Stem 2-4-branched from base, erect. Leaves paripinnate; stipules ovate-lanceolate or semihastate, small; leaflets 6-9-paired, linear or oblong-linear, 10-15 × 2-3 mm, apex mucronate; lateral veins not obvious; tendril 2- or 3-branched. Flowers 1-3 in axillary fascicles. Calyx obliquely campanulate, ca. 11 mm, densely yellow villous. Corolla white or yellow-white; standard 15-16 mm, equaling wings and longer than keel, abaxially villous. Ovary shortly stalked, vil­lous. Legume broadly oblong to subrhomboid, 20-35 × 7-11 mm, densely brown villous, apex beaked. Seeds 2-8, subob­late-spheroid. Fl. and fr. Jul-Sep. 2n = 12.

Cultivated. Almost throughout China [native to SW Asia and Europe; introduced and naturalized elsewhere].

The Chinese plants correspond to Vicia pannonica subsp. pannon­ica, characterized by a white or yellow-white corolla, with limb of stan­dard shorter than claw, and black seeds. Vicia pannonica subsp. striata (M. Bieberstein) Nyman has a dirty purple corolla, with limb of stan­dard subequaling claw, and black seeds marbled with brown.