Shrub to 4 m tall; branchlets glabrous or with short, erect, uncinate or appressed or spreading hairs. Leaves unifoliolate or digitately 3-6-foliolate and then the leaves sessile or almost so. Central or solitary leaflet petiolulate, usually narrowly oblong to elliptic-oblong, 1.1-12 cm long, 2-25 mm wide; lateral leaflets subsessile or shortly petiolulate, elliptic or elliptic-oblong, 0.6-1.7 cm long, 1.75-5 mm wide; upper leaflet surface usually glabrous; lower surface glabrous or with scattered, appressed or erect, uncinate hairs. Racemes 2-12-flowered. Sepals usually 4; outer two 8.8-12 mm long, 3-5 mm wide, usually with short, uncinate or appressed purplish or black hairs. Petals 4. Anthers unequal; short anther 4.5-5.5 mm long; long anther 7.5-9.5 mm long. Ovary clothed with white, ferruginous or black hairs. Pod 2.5-4 cm long, 8-11 mm wide. Seeds 5-6.5 mm long, 3.7-4.5 mm wide.
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