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ophis: purpletop tridens
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ophis: mature purple-tipped florets falling from spikelets
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ophis: glumes ovate, shorter than lemmas, with strong midvein
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ophis: panicles large, open, with drooping branches and dark spikelets
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ophis: flattened leaf-tuft with tooth-like perennating buds
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ophis: short, knotty rhizomes