Liana or erect to climbing shrub, to 8 m tall, glabrous except on inflorescences; spinescent stipules lacking. Leaves compound; rachis 4-14 cm long; petiolules 2-6 mm long, wrinkled; leaflets 5-7, alternate on rachis, ovate to elliptic, gradually to abruptly acuminate, often long-acuminate, usually obtuse to rounded at base, less frequently acute or slightly cordate at base, 2.5-11 cm long, 1.5-6 cm wide, drying dark brown, often arched along the midrib, the sides folded +/- upward, the veins prominulous on lower surface; juvenile leaves much larger, more abruptly and conspicuously long-acuminate than adult leaves, to 17 cm long and 8 cm wide. Panicles 3-9 cm long, several per axil in upper axils, the branches densely ferruginous-tomentose; bracteoles broadly reniform, prominently striate, ciliate, glabrous to inconspicuously pubescent; flowers white, sessile; calyx ca 4.5 mm long, prominently striate, glabrate to inconspicuously pubescent, more so on the lobes, the lobes subequal, the lateral lobe +/- deltoid, the carinal tooth much narrower; standard to 9 mm long and 13 mm wide; keel and wings only slightly shorter, the outer surface of all petals conspicuously and densely golden-brown sericeous. Fruits samaroid, 6-8 cm long, 1.5-2 cm wide, becoming glabrous in age, borne on narrow stipes ca 7 mm long, the upper margin thick, +/- straight, the lower margin thin, curved; seminiferous area brown, the wing yellow-brown with prominent, dark, reticulate veins. Croat 7951, Foster 1301.