Trees small. Young branchlets glabrous or white villous-pubescent, glabrescent, glabrous when mature. Petiole glabrous or pubescent, geniculate at base, 1.5-5 cm; leaf blade orbicular, lanceolate-oblong, or subcordate, 2.3-10 × 3-10 cm, palmately 7-or 9-lobed, lobes lanceolate or lanceolate-oblong, both surfaces villous especially on veins, base cordate, margin sharply and doubly serrate, apex acuminate. Inflorescence corymbose, densely villous at first; peduncles 1-2.5 cm. Flowers small; pedicel 5-6 mm. Staminate flowers ca. 6 mm in diam. Sepals 5, slightly purplish, ovate-oblong or lanceolate, 2-3 mm, ± glabrous. Petals 4, white, orbicular-ovate, 1-1.5 mm. Disk into 4 glands. Ovary densely villous in pistillate flowers. Stamens short; anthers and filaments each ca. 1 mm. Nutlets strongly convex, 5-7 mm in diam., including wing 2-3 cm; wings spreading at obtuse angle. Fl. Apr or May, fr. Sep.
Can be grown by cuttings, graftings or seedlings. Seeds needs soaking.
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