Lianas. Leaves 5- or 7-foliolate; rachis 15-28 cm, in­cluding petiole 3-8 cm; leaflet blades ovate-elliptic, ovate-ob­long, or elliptic, 3-13 × 1.5-6 cm, thickly papery to thinly leathery, both surfaces glabrous, reticulate veins slightly promi­nent or obscure, base rounded, apex acuminate to slightly ob­tuse. Inflorescences and pedicels sparsely yellowish brown his­pidulous or densely brownish pubescent. Pseudopanicles axil­lary, slightly shorter than leaves; rachis nodes with several fascicled flowers on short branchlets. Pedicel 3-5 mm. Flowers 1.2-1.3 cm. Calyx campanulate, 2-3 mm, sparsely pubescent; teeth orbicular to deltoid, short. Corolla whitish, ca. 1 cm; stan­dard obovate-elliptic, claw short. Ovary sessile, whitish villous. Legume oblong to ligulate-oblong, 4-10 × 1.5-2.3 cm, com­pressed, swollen or not when mature, thinly leathery, glabrous; abaxial suture wing up to 1.5 mm wide, adaxial suture with a 2-3 mm wide wing. Seeds 1-4 per legume. Fl. Mar-May, fr. Jun-Nov.

● Mountain valleys, scrub, sparse to dense forests, mountain slopes, near trails; 500-1600 m. Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Yunnan, Zhejiang.