宽叶山黧豆 kuan ye shan li dou

Herbs perennial, to 3 m tall. Stem erect, quadrangular, pubescent or glabrous, winged. Leaves with branched tendril at apex; stipules semisagittate, lanceolate to ovate; leaflets 1-paired, elliptic to elliptic-orbicular, or ovate to linear, (30-)40-150 × 3-50 mm, with parallel veins. Raceme 5-15-flowered. Calyx campanulate, ca. 6 mm, equally 5-toothed. Corolla pur­ple to pink, (15-)20-30 mm. Style twisted. Legume brown, 5-11 cm, glabrous. Seeds 10-15.

Cultivated in Shaanxi [native to C and S Europe; cultivated world­wide in temperate areas as an ornamental and fodder crop].