太白野豌豆 tai bai ye wan dou

Herbs perennial, 60-100 cm tall, glabrous. Stem thick. Leaves paripinnate, 7-16 cm; stipules 5-9 mm, margin entire; leaflets 3-5-paired, elliptic to ovate-oblong, 15-50 × 6-15 mm, papery, apex obtuse, mucronate; lateral veins 8-15-paired; ten­dril 3- or 4-branched. Raceme longer than leaf, sparsely 5-15-flowered; rachis slender. Calyx obliquely campanulate, shortly and unequally toothed. Corolla yellow or brown-yellow; stan­dard narrowly obovate-oblong, constricted at middle, ca. 13 mm, apex retuse; wings and keel ca. 1 cm. Ovary long stalked; ovules 6 or 7. Legume oblong-rhomboid, 20-30 × ca. 5 mm. Seeds 2-5, oblong. Fl. and fr. Jul-Oct.

● Forests, hill slopes, valleys; 1100-2000 m. Shaanxi.