awn

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awn

any of the bristles growing from the spikelets of certain grasses, including cereals

awn

[ȯn]
(botany)
Any of the bristles at the ends of glumes or bracts on the spikelets of oats, barley, and some wheat and grasses. Also known as beard.
References in periodicals archive ?
Awned Graceful Sedge, Davis' Sedge; Floodplain woods, especially south of central field; Abundant; C = 3; BSUH 17540.
Peroxidase activity in hooded and awned barley at successive stages of development.
Awned Graceful Sedge, Davis' Sedge; C = 3; BSUH 16896; 16555, 16553.