Shrub or small tree 2-5 m high, sometimes multi-stemmed probably indicating ability to sucker. Branchlets white-pubescent, glabrescent. Leaves compound, terete, 2-7 cm long, white-pubescent; final segments 1-14, 0.1-3.6 cm long, 0.7-1.8 mm wide, spreading; apex straight; undivided base 0.6-4 cm long. Inflorescence with 35-100 flowers; rachis 20-75 mm long, appressed white-pubescent, with indumentum similar on pedicel and perianth. Flowers white; pedicels 3-9 mm long. Perianth slightly bent in mature bud, 2-5 mm long. Pistil 8.5-11 mm long; style ±straight; pollen presenter porrect, conical. Fruit 20-28 (-34) mm long, often pubescent, glabrescent; valves 7-11 mm wide; red-brown wood zone 0.5-1 mm wide; pale wood zone (2-) 3-4 (-4.5) mm wide; beak very long, wide; horns rarely conspicuous and up to 2 mm long. Seed occupying most of valve, 19-26 mm long, 6-10 mm wide; wing terminal on seed body to decurrent c. 1/3 way down one side only.