Finely pubescent tuberous vines. Leaves narrowly cordate to deltoid, acute, mucronate, the blades mostly about 8 cm. long by 6 cm. broad, pubescent on the veins below; petioles 1-2 cm. long, sparsely pubescent, the leaf bases decurrent on the petioles forming flanges up to 4 mm. broad. Inflorescences of axillary and terminal capreolate racemes or panicles, the rhachises rufous-pubescent. Flowers pedicellate, the minutely pubescent pedicels articulated 2-3 mm. from the rhachis, 7-10 mm. long; tepals greenish white, cordate, acute, in fruit about 10 mm. long by 4 mm. broad, glabrate; stamens 8, connate slightly less than half their length, about 2 mm. long; ovary trigonous; styles 3, arcuate; stigmata peltate. Achenes bluntly triquetrous, about 11 mm. long, slightly exserted.
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