Tree or shrub; young branchlets sparsely clothed with very short appressed hairs, soon glabrescent and densely provided with lenticels. Leaves on petioles 4-6 mm. long, membranaceous, finally glabrous, verruculose along the thicker nerves, oblong, elliptic-oblong or obovate, cuneate at the base, rather abruptly cuspidate, 10-22 cm. long, 4.0-6.5 cm. broad. Pedicels about 3 cm. long. Sepals rounded-ovate, shortly apiculate, about 4 mm. long. Petals grey-tomentellous, the outer flat, broadly ovate, acute, up to 12-13 mm. long, the inner obovate-rotundate, about 17 mm. long and 10 mm. broad, narrowed at the base into a petiole 5 mm. long, the margins of the upper part striate and involute. Stamens 2.5 mm. long, connective-disk plane and tomentellous. Monocarps 8-10, shortly cylindric, not torulose, 3-5 cm. long and about 1.7 cm. thick. Seeds 12-14.