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FOC | Family List | FOC Vol. 10 | Fabaceae | Vicia

4. Vicia tenuifolia Roth, Tent. Fl. Germ. 1: 309. 1788.

细叶野豌豆 xi ye ye wan dou

Ervum tenuifolium (Roth) Trautvetter (1875), not Lagasca y Segura (1816); Vicia brachytropis Karelin & Kirilov; V. cracca Linnaeus subsp. tenuifolia (Roth) Gaudin; V. cracca var. tenuifolia (Roth) Beck.

Herbs perennial, to 100 cm tall. Stem erect, strong, pu­berulent. Leaves paripinnate; stipules semihastate, bifid; leaflets 6-13-paired, linear or linear-lanceolate, 10-30 × 2-6 mm, sub­leathery, abaxially white hairy, adaxially glabrous, margin en­tire, apex obtuse, mucronate; lateral veins sparse; tendril 2- or 3-branched. Raceme 15-30 cm, 20-30-flowered, densely hairy. Calyx shortly campanulate. Corolla purple, rarely white, 12-18 mm; standard violin-shaped, ca. 14 × 4 mm, equaling wings and longer than keel, limb (distal part) of standard longer than claw (proximal part). Ovary linear; ovules 5-9. Legume ob­long-lanceolate, 18-30 × 3-7 mm, both ends acuminate. Seeds 4-7. Fl and fr. Jun-Sep. 2n = 12, 14, 24.

Forests, dry grasslands, slopes. Xinjiang [Afghanistan, N India, Japan, Kashmir, Kazakhstan, Korea, Kyrgyzstan, N Mongolia, Nepal, N Pakistan, Russia, Tajikistan, Uzbekistan, Vietnam; NW Africa, SW Asia, Europe].


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