Herbs perennial. Stems erect, 60-100 cm tall, stout, much branched, striate, densely setose, setae deciduous. Petiole 3-4 mm, densely setose; leaf blade green adaxially, broadly lanceolate or oblong-lanceolate, 6-12 × 2-4 cm, abaxially densely grayish tomentose, adaxially sparsely appressed setose, midvein conspicuous abaxially; ocrea tubular, 2-3 cm, membranous, veined, sparsely long setose, oblique. Inflorescence paniculate, large; rachis and branches densely white pubescent; bracts brown, lanceolate, 2-2.5 mm, each 1-or 2-flowered. Pedicel 3-3.5 mm, slender, articulate. Perianth white, 5-parted; tepals obovate, unequal, 4-5 mm. Stamens 8, included; anthers yellow. Styles 3, ca. 0.5 mm; stigmas capitate. Achenes included in persistent perianth, brown, dull, ellipsoid, trigonous, 3-3.5 mm, smooth. Fl. Jul-Sep, fr. Sep-Oct.
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