Herbs perennial. Rhizomes horizontal. Stems erect, 50-100 cm tall, glabrous, sometimes sparsely hispidulous. Petiole short or nearly absent; leaf blade lanceolate, 7-15 × 1-2 cm, thinly leathery, densely minutely punctate, both surfaces sparsely appressed hispidulous, base cuneate, margin entire, hispidulous, apex acuminate; ocrea tubular, 1.5-2 cm, membranous, appressed hirsute, apex truncate, cilia 1-1.2 cm. Inflorescences terminal, spicate, usually numerous, 6-12 cm; bracts green, funnel-shaped, ciliate, each 3-6-flowered. Flowers dimorphic. Pedicel 2.5-4 mm. Perianth white or pinkish, 5-parted, minutely punctate; tepals elliptic, 2.5-3 mm. Stamens 8, exserted. Styles 2 or 3, connate below middle, included or stamens included and styles exserted on separate plant; stigmas capitate. Achenes included in persistent perianth, black, shiny or opaque, ovoid, trigonous or biconvex, 2.5-3 mm.
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A herb. It grows 50 cm tall. The leaves are 10 cm long by 2 cm wide.
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