Tree up to 33 m by 70 cm. Bark brown to grey, with large corky yellow-brown lenticels from base to top. Leaves elliptic-oblong, 9-16 by 4-7 cm, acute, base cuneate; petiole 2.5-4 cm. Stipules 3.5 cm long. Cymes 2-3-flowered. Peduncle short, 7-13 mm. Pedicels 6-8 mm. Flowers in anthesis 1.75-2.25 cm long. Calyx pale green, 10-lobed, tube 5 mm diam., slightly ridged outside in the upper part, lobes as long as the tube. Petals 7-9 mm long, villose at the lower margins, slightly pilose at the upper part of the lobes, lobes 1/3 as long as the petal, with 2-4 bristles at the apex. Calyx lobes patent at right angles in fruit. Hypocotyl cigar-shaped or slightly clavate, slightly curved, up to 9 cm by 11 mm.