Climbing shrubs, sometimes erect? Stems up to 3 m long, glabrous, prickles rather many, curved, stout. Leaves 3-foliolate, usually 1-foliolate near and in the inflorescence, petiole 1.5-5 cm long. Stipules linear, 3-7 by up to 1 mm, with some long hairs. Leaflets elliptic to oblong or ovate-oblong, terminal one 4-11 by 2-6 cm, lateral ones 2-9 by 1-4 cm, base rounded, margin serrate, apex acuminate, thinly herbaceous, 6-13 pairs of nerves, upper surface with patent hairs on main nerves, sometimes appressed hairs between them, lower surface glabrous except some hairs on larger nerves. Inflorescence lax, up to 5 cymes below the terminal flower, the cymes 1-to 3-flowered. Bracts often leaf-like or 3-partite. Pedicels up to 5 cm long, glabrous, with prickles. Hypanthium 5-6 mm across, glabrous outside, unarmed or with few short prickles. Sepals triangular to narrowly ovate, 6-12 by 3-6 mm, growing to 17 mm after anthesis, pointed, entire, glabrous outside but woolly on the covered margins, thick and hard. Petals obovate, 12-15 by c. 8 mm, falling early, emargi-nate, with ciliate undulate margin, white. Stamens 150-180, filaments up to 5 mm, anthers c. 1 mm long. Pistils more than 150, ovaries glabrous, on elevated, glabrous torus, the lower part without pistils and stalk-like, style up to 2.5 mm. Collective fruits (depressed) globose, up to 1.5 cm, sepals ultimately recurved. Fruits c. 2 by 1 mm (dry), exocarp orange-red to red, mesocarp a thin membranous layer when dry.
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