A climbing shrub; branches subquadrangular, tomentellous when young, puberulous when older and clothed with light-brown bark; internodes 3/4–1 1/4 in. long. Leaves ovate, gradually and subacutely acuminate, slightly rounded or subtriangular at the base, 1 1/4–2 1/2 in. long, 3/4–1 3/4 in. broad, serrate, membranous, rather sparingly setulose above, densely pubescent with spreading hairs on the nerves and veins below, digitately 15-nerved at the insertion of the petiole, remaining lateral nerves about 4 on each side, looped and anastomosing before reaching the margin, raised on both surfaces; transverse nerves subparallel, about 1 lin. apart; petiole 1/2– 3/4 in. long, densely pubescent; stipules subulate, 2 lin. long, pubescent. Inflorescence bisexual, axillary, solitary, pedunculate; peduncle about 1 in. long, with a female 2-flowered bract placed slightly above the middle, upper part male and spicate, 1–1 1/2 in. long. Buds of the male flowers slightly pubescent. Bract enclosing the female flowers foliaceous, about 3 lin. long and broad, pubescent outside, rather sparingly so within, margin rather deeply crenate-dentate, without glands. Sepals 3, ovate, 1/3 lin. long, ciliate and pubescent on the back, setose at the apex. Ovary pubescent, slightly trilobed; styles 3, suberect, 3/4 lin. long, laciniate and distinctly pubescent.
