Shrubs semievergreen, epiphytic, dioecious, 0.6-1.5 m tall. Branchlets glabrous, unarmed. Buds purple, oblong-ovoid, 7-10 mm, glabrous. Leaves 2-4-clustered at branchlet apex; petiole purple, 1-4 cm, glabrous; leaf blade suborbicular to reniform-orbicular, 2.5-7 cm, somewhat leathery, glabrous, 5-veined, base rounded or truncate to shallowly cordate, margin unlobed, undulate, or sharply 5-7-lobed; lobes (or leaf blade) irregularly obtusely dentate at margin, apex obtuse. Male racemes 4-7 cm, 10-45-flowered, female ones 4-5 cm, 10-15-flowered; rachis puberulent, sometimes sparsely shortly stalked glandular; bracts oblong to elliptic, 8-12 mm, 1-veined, margin ciliate. Pedicel 5-7 mm, glabrous. Calyx purplish or greenish purple, glabrous; tube campanulate, 3-4 mm; lobes oblong, 3-4.5 mm. Petals cuneate-spatulate, 1.5-2 mm. Stamens subequaling petals. Ovary subglobose, glabrous. Style 2-3 mm, 2-lobed. Fruit subglobose to ellipsoid, 0.5-0.6 cm in diam. (immature), glabrous. Fl. Apr-May, fr. Jun-Jul.
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