毛山黧豆 mao shan li dou

Lathyrus pilosus Chamisso, Linnaea 6: 548. 1831; L. palustris subsp. pilosus (Chamisso) Hultén.

Plants pubescent. Stem winged. Leaves with branched ten­dril; stipules semisagittate; leaflets 2-4-paired. Raceme (2 or)3- or 4(or 5)-flowered.

Gansu, Hebei, Heilongjiang, Hubei, Jiangsu, Jilin, Liaoning, Nei Mongol, Qinghai, Shanxi, Sichuan, Yunnan, Zhejiang [Japan, Korea, Mongolia, Russia].

Glabrous plants with the characteristics of Lathyrus palustris var. pilosus can be referred to the typical variety, Lathyrus palustris var. palustris, but such individuals have not been reported from China.