Spikelets unisexual, arranged in whorls at the nodes of a readily disarticulating axis, the whorls falling entire, each composed of 1 pistillate spikelet surrounded and enclosed by 4 or 5 staminate spikelets; pedicels of staminate spikelets thickened, indurate, united; staminate spikelets dorsally compressed; glumes acute or acumi-nate, 1-to 3-nerved, one-third to half as long as the spikelet; lemma broad, 3-, rarely 5-, nerved, acute to obtuse; stamens numerous; pistillate spikelet completely hidden by the staminate spikelets; glumes thin, acute, 1-to 3-nerved; fruit in-durate, resembling that of Olyra.
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