Herbs, annual, fetid. Stem erect, 30-50 cm, ferruginous pubescent. Leaves herbaceous; leaf blade broadly ovate, ovate-lanceolate, or suboblong, 2-5 × 1-3 cm, sparsely pubescent on both surfaces, glabrescent, base subcuneate or subrounded, somewhat decurrent to petiole, apex acuminate; petiole 0.5-1.8 cm; stipules membranous, connate, ovate or deltoid-ovate, 4-6 mm, ciliate. Flowers unisexual. Staminate flowers: perianth membranous, 2-lobed, tube ca. 2 mm, lobes 3-5 mm, lanceolate, apex obtuse, reflexed, 5-7-veined; stamens more than 20. Pistillate flowers: smaller; perianth 2-lobed, apex obtuse. Fruit ovoid, ca. 5 mm. Fl. Apr-Jul, fr. Jun-Aug.
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