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 Perennial herb 1.5-2.5 meters high, glabrous. Stems subscandent. Leaves straight or nearly so, asymmetric, elliptic, acuminate, 5-10 cm. long, 18- 36 mm. wide, acute at one side of base and the other obtuse, penninerved, thin, serrate, short-ciliate, petioles 6-15 mm. long, stipules oblong, 16-30 mm. long. Cymes axillary, laxly many-flowered, peduncles 2- 5 cm. long. Bracts deciduous, minute. Staminate tepals 2, suborbicular, 4- 5 mm. long. Stamens free, anthers oblong, the connective produced. Pistillate tepals 2, like the staminate. Styles 3, 2-branched with the branches again divided, placentae bilamellate, ovule-bearing on all sides. Capsule unequally 3-winged, 2 costiform, the third ovate. - F.M. Neg. 24199.
