Herbs perennial. Stems erect, 20-60 cm tall, branched above, pilose, striate. Petiole 2-4 cm, pilose; leaf blade greenish abaxially, green adaxially, ovate or broadly ovate, 5-10 × 3-5 cm, abaxially pilose, adaxially glabrous or pilose, base rounded or cordate, slightly decurrent, margin entire or slightly undulate, densely ciliate, apex long acuminate; ocrea brown, tubular, 2-3 cm, membranous, dehiscent above, sparsely villous along veins. Inflorescence terminal or axillary, paniculate, sparsely branched, slightly spreading, nutant in fruit; bracts ovate, membranous, each 1-or 2-flowered. Pedicel 2-3 mm, slender, articulate at middle. Perianth red, margin white or greenish, 5-parted; tepals elliptic, unequal, 2.5-3 mm, enlarged in fruit, ca. 4 mm. Stamens 7 or 8, included. Styles 3; stigmas capitate. Achenes equaling persistent perianth, brown, shiny, ovoid, sharply trigonous, 3.5-4 mm. Fl. Jun-Aug, fr. Jul-Sep.
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