stiff bristle growing from the tip of certain grasses
clues: Barley bristles; Barley fibers, e.g.; Barley beards; Plant
bristles; Grain beards; Plant appendages
Once a year
Grass Benefits You Don't Know
botany, an awn is either a hair- or bristle-like appendage on a
larger structure, or in the case of the Asteraceae, a stiff
needle-like element of the pappus.
are characteristic of many grasses (Poaceae), where they extend
from the lemmas of the florets. They often make up the hairiness
or other distinctive appearance of foxtails and the like. Awns
may be long (several centimeters) or short, straight or curved,
single or multiple per floret. Some genera are named after their
awns, such as the three-awns.
bearded flowers. Awns are twisted and bent at right angles when
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