Erect open shrub, 1-5 m tall, non-lignotuberous. Branchlets and young leaves densely appressed-pubescent, ferruginous, quickly glabrescent. Leaves narrowly obovate or obovate, 7-13 cm long, 10-25 mm wide, narrowly attenuate, entire, abruptly short-acuminate, truncate or rounded, blackened at apex. Inflorescence umbelliform with 5, 7 or 9 flowers; rachis obscure; pedicels 2 mm long, densely appressed-pubescent with white or cream-yellow hairs. Perianth 2-3.5 mm long, densely appressed-pubescent, ferruginous. Pistil 5-5.5 mm long; gland a curved flap. Fruit obliquely obovate, 5-5.5 cm long, 2.7-3.3 cm wide, finely rugose. Seed obliquely obovate, 30-33 mm long; wing broadly and partly down one side of seed body only.