Vines; stems herbaceous, pubescent. Leaves ovate-lanceolate to lanceolate, 1.5-3.5 cm long, basally acute, apically acute or lanceolate, glabrescent. Flowers in axillary racemose clusters, 2-3-flowered, pubescent; sepals ovate-cordate to suborbicular, 3-6 mm long and 3-6 mm wide, ciliate; corollas white, 5-10 mm long, interplicae glabrous; stamens unequal, the filaments basally pubescent; ovary conic-globose, glabrous. Fruits capsular, globose, enclosed within the sepals, 3-6 mm in diameter, glabrous, light brown; seeds light brown to red-brown, 2-4 mm long, spinulose and glabrous.
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