Stems climbing several meters high, the younger parts, petioles, and inflores-cence thinly brown-strigose; petioles 1-2 cm. long; leaf-blades firm or fleshy, subrotund, 6-10 cm. long, short-acuminate, entire or serrulate, rounded or truncate at base, 5-nerved, glabrous above; inflorescence a panicle 2-4 dm. long from the upper axils or terminal, each component umbel 2-to 6-flowered; pedicels 2-5 mm. long; hypanthium 5 mm. long; petals white, 10 mm. long; anthers 6-10 mm. long, the dorsal spur 3-4 mm. long.
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