Small tree or shrub, rounded or erect, 1-4 m high, non-lignotuberous. Branchlets and young leaves appressed-pubescent, ferruginous. Leaves simple, narrowly elliptic or obovate, 3-12 cm long, 0.3-3 cm wide, attenuate, entire, rounded, rarely truncate. Inflorescence a raceme with 4-14 flowers; rachis 1-10 mm long, tomentose; pedicels 5-7.5 mm long, densely appressed-pubescent with hairs ferruginous and white, extending onto perianth. Perianth 6-11 mm long, cream-white inside. Pistil 13-16 mm long; gland U-shaped. Fruit obliquely obovate, 4.5-5.5 cm long, 3.7-4.5 cm wide, coarsely rugose or with large corky tubercles. Seed broadly ovate, elliptic or obovate, 25-36 mm long; wing encircling seed body.