Vines; stems slender and herbaceous, annuals, pilose, glabrescent. Leaves broadly ovate to subreniform, 1-3(-7) cm long, acute to rounded apically, cor-date basally, entire to somewhat angulate, glabrous beneath, ciliate, pilose above. Flowers on peduncles usually longer than the leaves, 1-3-flowered; sepals sub-lanceolate, 2-2.5 mm long, acute to acuminate, white pilose; corollas yellow to pale yellow, 10-15 mm long. Fruits capsular, subglobose, 3-4 mm in diameter; seeds black, minutely puberulent but glabrate.
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