Climbing or scrambling shrubs, up to 4 m high. Stems long-hairy, glabrate, prickles many, straight, stout, up to 9 mm long, red. Leaves 3-foliolate, upper ones sometimes simple, petiole 1-5 cm long. Stipules ovate to lanceolate, usually oblique, 10-18 by 3-15 mm, entire to serrate, acute to caudate, hard, sometimes with prickles. Leaflets obovate, 2-7 by 1.5-3.5 cm, lateral ones shorter and relatively broader, margin serrate, apex rounded, rarely acute to acuminate, very stiff coriaceous, 4-8 pairs of nerves, both sides slightly hairy on main nerves when young, hairs often disappearing with age, leaflets often folded along the midrib. Inflorescence with up to 4 cymes below the terminal flower, cymes with 1-3 flowers, the whole inflorescence usually with less than 8 flowers. Bracts stipule-like. Pedicels up to 3 cm, hairy and with some prickles. Hypanthium up to 7 mm across, short-hairy and with many prickles outside. Sepals ovate to triangular, 9-14 by 5-8 mm, entire, caudate, rather sparsely hairy and with many long prickles outside, woolly on covered margins. Petals obovate to suborbicular, 8-11 by 6.5-9 mm, rounded, white. Stamens 30-45, filaments up to 5 mm, anthers c. 1 mm long. Pistils 15-45, ovaries glabrous, on elevated, hairy torus, style up to 4 mm long. Collective fruits ovoid, up to 1.5 cm across. Fruits up to 4.5 by 3 mm when dry, orange to red, mesocarp fleshy.
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