Stem subrepent at base, the branches erect, 20-40 cm. high, glabrous, or sparingly pubescent in upper part; leaves ovate-lanceolate, 4-10 cm. long, 2-3 cm. wide (extremes to 15 X 6 cm.), acuminate, cordate or somewhat narrowed at base, coarsely serrate, sometimes bullate, usually strigillose with a few hyaline hairs above, hirsutulose on the nerves beneath; plants usually dioecious, the cymes diffusely branched, with peduncles up to 6 cm. long; staminate flowers with filiform appendages; achenes minute, barely 0.5 mm. long.
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