Trees to 15 m tall. Bark gray, smooth; branchlets glabrous or at first minutely hairy; terminal bud sparsely puberulent. Petiole 2.5-4 cm, hairy, glabrescent; leaf blade broadly ovate, 5-10 × 4-9 cm, abaxially usually glabrescent, hairy in vein axils, adaxially glabrous, lateral veins 6-7 pairs, base oblique, truncate or cordate, margin serrate, apex acuminate or acute. Cymes 4-10-flowered, 5-8 cm; peduncle stellate puberulent. Bracts on 5-8 mm stalk, narrowly oblanceolate, 7-9 cm, adnate to peduncle for 1/2 of length, hairy, more densely so abaxially, base cuneate, apex obtuse. Pedicel 7-9 mm. Sepals lanceolate, ca. 5 mm, abaxially stellate puberulent. Petals ca. 7 × 3 mm. Stamens ca. 4 mm; staminodes 5, shorter than petals. Ovary hairy; style glabrous. Fruit globose, stellate puberulent, verrucose; exocarp woody, hard, indehiscent. Fl. Jun-Jul. 2n = 82*.