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(Last Modified On 10/22/2012)
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(Last Modified On 10/22/2012)
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Genus
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ISACHNE R. Br.
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PlaceOfPublication
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Prodr. Fl. Nov. Holl. 196. 1810.
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Description
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Spikelets subglobose with two well-developed florets, the lower perfect or staminate, indurate and similar to the upper, or herbaceous and similar to the glumes, the rachilla segment between the florets evident; glumes equal, similar, shorter than the spikelet, exposing the florets; fruit plano-convex, indurate, the narrow margins of the lemma inrolled.
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Note
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Herbaceous or sometimes woody perennials with flat blades and open or con- densed panicles.
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Key
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a. Low annual; culms slender, creeping; first floret similar to the glume in texture; fruit densely pubescent _ - ----- 1. I. POLYGONOIDES aa. Coarse perennial; culms cane-like, woody, erect or clambering; first floret similar to the second, both glabrous - - __ - _ 2. I. ARUNDINACEA
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