Small tree, up to 8 m, 5 cm dbh. Twigs sparsely minutely hairy, glabrescent, older nodes often strongly thickened and with numerous adventitious buds. Axillary buds oblong, 6-9 mm long, basally narrowed and strongly thickened, sparsely shortly hairy, glabrescent. Petiole 15-18 mm, more or less densely shortly hairy, with 2(-4) more or less distinctly protruding small glands. Leaf-blade ovate-oblong to ovate-lanceolate, rarely elliptic, c. 20-40 by (6—)8—12(—15) cm, base cordate, the margins at base flat or only little upturned, apex gradually narrowed to shortly acuminate; above often slightly bullate between secondary nerves and intramarginal nerve, dark green to greenish brown; beneath sparsely minutely hairy on the nerves in basal part, secondary nerves 9-12 pairs, often irregular, forming a nearly complete, somewhat irregular, intramarginal nerve; glands few, situated in middle and basal part, 0.2(-0.4) mm diam. Inflorescences sometimes also on older shoots from adventitious buds, up to 22 cm long; axes angular, slightly grooved, densely shortly I patently hairy; lower bracts opposite. Pedicel 2-3.5 mm, grooved, densely shortly half-patently hairy. Sepals: outer sepals 3.5-4.3 by 4.3-5 mm; inner sepals 5-5.9 by 4.3-4.5 mm. Petals dark red when dry, the longest one 15-18.5 mm; carina rather densely shortly appressedly hairy outside, glabrous inside except at base; other petals minutely sparsely appressedly hairy in basal part out-and inside, further glabrous. Stamens: filaments widened and slightly thickened above base and only there rather densely half-patently hairy; anthers 1.1-1.2 mm long, ciliate along slits. Ovary stipitate for 1-1.5 mm, half-patently hairy; style densely hairy in basal part, upwards sparsely hairy to near apex; ovules 4. Fruit globular, c. 1.7 cm diam., dull brown, rather distinctly half-patently hairy; pericarp rather thin, brittle; pedicel up to 5-6 mm.
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