Small climber. Twigs slender, fairly straight, glabrous, rarely glabrescent; internodes 2-5 cm. Thorns mostly wanting, if present slightly recurved, up to 3 mm. Leaves firmly herbaceous, often dull red-brownish when dry, broadest in the middle, (1.7-)2.2-2.8(-3.5) times as long as wide, (8-)13-20(-26) by (4.5-)5-8(-10) cm, glabrous or rarely thinly puberulous below; margins sub-revolute; base rounded or acutish or subcordate, top (rarely sharply) acuminate, or rarely emarginate; midrib above mostly sulcate in the basal part, to flat; nerves 5-9 pairs; petiole (0.75-)1-1.5(-1.75) cm, sulcate above, glabrous, rarely glabrescent. Subumbels up to 10-flowered, mostly sparsely puberulous, sometimes axillary but mostly arranged in a terminal panicle, slender, 2-7(-12) cm peduncled. Pedicels 1-4.5(-6) cm. Bracts small, subulate, hairy, caducous. Buds globular, 5-6(-10) mm diam. Sepals subpersistent, outside sparsely hairy or glabrous, with membranous margin, 5—6(-12) mm diam.; outer pair subcoriaceous, one often initially enveloping the bud for ⅔; inner pair suborbicular, herbaceous. Petals thin, obovate, 6-8 by 2½-4 mm, white, minutely puberulous on both sides, base narrowed, top rounded (sometimes crisped?). Stamens c. 25-45, (1.5-)2.5-3 cm long, white or pale pink; anthers 1.5-2.5 by 0.5 mm. Gynophore 2-3.5(-4) cm, often thinly puberulous at the base, soon glabrescent; ovary ellipsoid, 1.5 by 1 mm. In fruit the pedicel, torus, and gynophore are rather incrassate. Fruit ovoid or ellipsoid, c. 4.5 by 3.5 cm, top sometimes umbonate, pericarp thin, leathery, smooth, red. Seeds ∞, C. 12 by 9 by 6 mm.
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