A very weedy species, small growing with greenish white flowers and produces a lot of seed. Flora of Peru. by J. Francis Macbride. Chicago, Ill. Field Museum of Natural History, [1941] v.13: pt.4: no.1 (1941): Page 181- 202 http://www.biodiversitylibrary.org/item/19800 Herb, 2-9 dm. high. Stem branching, villous with brownish hairs 2 mm. long. Leaves strongly asymmetric, transversely ovate, acute, very shallowly cordate at base, 3- 11 cm. long, broad, palmate nerved, shallowly or not lobed, crenate-serrate, sparsely pilose above, petioles 2-7 cm. long, stipules persistent, ovate-oblong, lacerate ciliate. Cymes axillary, usually few-flowered, peduncle 3- 5 cm. long. Bracts persistent, small, lacerate. Pedicels 4-12 mm. long. Staminate tepals 4, the outer 2-4 mm. long, suborbicular, the inner oblong, much smaller. Stamens free, 9-22. Pistillate tepals 5, obovate. Styles 3, 2-parted, the stigmatic tissue linear, spiral, continuous, placentae variable. Capsule 10- 14 mm. long, the wings subdeltoid, unequal, the largest 9-12 mm. wide. - F.M. Neg. 20892.
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Extremely weedy, declared so in a number of countries. Spread by seed.
