Herbs perennial. Rhizomes slender. Stems decumbent or suberect, 2-25(-43) cm tall, branched from base, glabrous. Petiole 0.8-1.5 cm; leaf blade narrowly elliptic or lanceolate to linear, 3-10 cm × 1.5-15 mm, base hastate or cuneate, margin entire, apex acute or obtuse; ocrea tubular, membranous, apex oblique, not ciliate. Inflorescence terminal, paniculate, lax, interrupted; bracts funnel-shaped, glabrous, each 4-6-flowered. Pedicel short, articulate above middle. Perianth yellow-green, 5-parted; tepals oblong, ca. 3 mm. Stamens 7 or 8, included; filaments dilated at base. Styles 3, short; stigmas capitate. Achenes slightly exceeding persistent perianth, black, shiny, ovoid, trigonous. Fl. and fr. Jun-Sep.
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A herb. The rhizomes are slender. The stems can lie along the ground. They are 25 cm tall. They branch from the base. The leaf blade is narrowly oval and 3-10 cm long by 2-15 mm wide. The fruit are dry and black and shiny. They are 3 sided.
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