glume
plant anatomy
Quick Summary
A glume is a chaffy bract, specifically one of the two empty bracts found at the base of a grass spikelet. Spikelets are the fundamental units of a grass inflorescence, each containing a small axis (rachilla) with overlapping scales. The glumes are the lowermost of these scales and typically enclose some or all of the other scales within the spikelet.12
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