HABIT
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TUFTED PERENNIAL, WITH VERY SHORT RHIZOME.
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STEMS
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CULMS TRIGONOUS, SMOOTH,
25–90 CM HIGH, 2–4 MM DIAMETER.
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LEAVES
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SLIGHTLY SEPTATE-NODULOSE, AS LONG AS CULMS OR SHORTER, 4–8 MM WIDE.
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FLOWERS
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INFLORESCENCE SIMPLE TO
DECOMPOUND WITH UP TO 12 PRIMARY BRANCHES TO 12 CM LONG; DIGITATE CLUSTERS
10–50 MM DIAMETER.
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FRUITS
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NUT TRIQUETROUS, OBOVOID,
ABOUT HALF AS LONG AS GLUME, 1–1.4 MM LONG, 0.5 MM DIAMETER, DARK BROWN TO GREYISH.
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