Trees, small, or shrubs, usually not more than 5 m tall. Branchlets with slightly dense lens-shaped lenticels, pubescent. Leaves trifoliate; petioles 6-12.5 cm; leaflets with petiolules 5-15 mm; blades membranous or thinly papery, abaxially glabrous, adaxially hairy on midvein, lateral veins ca. 10 pairs, prominent on both surfaces, margin shallowly wavy toothed; terminal blade oblong-lanceolate, 8-22 (or more) × 3.5-7.5 cm, base cuneate, apex caudate-acuminate; lateral ones smaller, ovate, extremely asymmetrical, base broadly cuneate to subrounded. Inflorescences racemose, main rachis unbranched, rarely with 1 slender branch at base, longer than leaves, sometimes nearly as long as or slightly longer than petioles; rachis slender, tips usually pendulous; peduncles 1.5-2.5 cm. Pedicels ca. 1 mm. Petals narrowly cuneate; scales deeply 2-parted. Disk subglabrous. Filaments villous at lower part. Fruit red, subglobose, 7-8 mm in diam. Fl. Aug-Sep, fr. Sep-Nov.
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