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Vicia cracca

Description from Flora of China

Ervum cracca (Linnaeus) Trautvetter; Vicia cracca f. canescens Maximowicz; V. cracca var. canescens (Maximo­wicz) Franchet & Savatier; V. cracca subsp. heteropus Freyn; V. cracca var. japonica Miquel.

Herbs perennial, 40-150 cm tall. Stem climbing or trailing, hairy (sometimes densely gray-white villous) or gla­brescent. Leaves paripinnate; stipules semihastate; leaflets 5-12-paired, linear, linear-lanceolate, or oblong, 11-30 × 2-4 mm, margin entire, apex rounded or acute, mucronate; lateral veins sparse, not obvious; tendril 2- or 3-branched. Raceme sub­equaling leaf, 10-40-flowered. Calyx campanulate. Corolla pur­ple, blue-purple, or purple-red, 8-13(-15) mm; standard violin-shaped, equaling wings and longer than keel, limb (distal part) of standard subequaling claw (proximal part). Ovary stalked; ovules 4-7. Legume oblong or oblong-rhomboid, 20-25 × ca. 5 mm, apex beaked. Seeds 3-6. Fl. (Dec), Apr-Sep, fr. May-Oct. 2n = 12, 14, 21, 22, 24, 28.

Forest margins, thickets, scrub, hill slopes, valleys, grasslands, meadows, streamsides, wet sandy land, alluvium, fields, roadsides; be­low 4200 m. Anhui, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Jiangxi, Jilin, Liaoning, Nei Mongol, Shaanxi, Shanghai, Shanxi, Sichuan, Taiwan (?intro­duced), Xinjiang, Xizang, Yunnan, Zhejiang [Japan, Kazakhstan, Korea, Kyrgyzstan, Mongolia, Russia, N Vietnam; SW Asia, Europe; intro­duced and naturalized elsewhere].


 

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