华野豌豆 hua ye wan dou

Lathyrus hupehensis (Pampanini) E. Peter; L. sargentianus Craib; Orobus hupehensis (Pampanini) Stankevicz; Vicia hu­pehensis Pampanini.

Herbs perennial, 150-200 cm tall. Stem branched from base, slender, sparsely pilose or glabrescent. Leaves subsessile, paripinnate, 8-16 cm; stipules semihastate, bifid, margin entire or toothed; leaflets 4-7-paired, markedly discolorous, abaxially pale green, adaxially green, narrowly lanceolate to lanceolate-ovate, 10-45 × 7-15 mm, leathery, both surfaces sparsely vil­lous or glabrescent, apex obtuse or retuse, mucronate; tendril 2- or 3-branched. Raceme 6-17 cm, subequaling or longer than leaf, 5-25-flowered, puberulent or glabrous; bracts absent. Ca­lyx subcampanulate, shortly and unequally toothed. Corolla blue-purple to purple-red, red, yellow, or pale yellow, 10-13 mm; standard slightly longer than keel. Ovary stalk ca. 4 mm; ovules 3-6. Legume fusiform, 28-37 × 8-9 mm, glabrous. Seeds 2 or 3, dark brown, oblate, ca. 5 mm in diam. Fl. Jun-Aug, fr. Aug-Sep.

● Thickets, scrub, valleys; 600-3300 m. Hubei, Hunan, Shaanxi, Sichuan, Xizang, Yunnan.

Lathyrus sargentianus and Vicia hupehensis are here treated as synonyms of V. chinensis. They were treated as synonyms of L. dielsi­anus in Fl. Xizang. (2: 765-766. 1985), where the plant described and illustrated is in fact V. chinensis.