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ophis: pale sedge
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ophis: elliptic perigynia falling from spikes
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ophis: inflorescences topped by erect leaflike bracts
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ophis: glossy translucent weakly trigonous 3 mm perigynia
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ophis: leaf-blades finely erect-hairy on undersides
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ophis: whitened stem bases and short, knotty rhizomes obscured by dense roots