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Acorn
From Wikipedia, the free encyclopedia
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For other uses, see
Acorn (disambiguation).
Acorns of
Sessile Oak
The acorn, or oak nut, is the
nut of the
oaks and their close relatives (genera
Quercus and
Lithocarpus, in the family
Fagaceae). It usually contains a single
seed (rarely two seeds), enclosed in a tough, leathery shell, and borne in a cup-shaped
cupule. Acorns vary from 1?6 cm long and 0.8?4 cm broad. Acorns take between about 6 and 24 months (depending on the species) to mature; see
List of Quercus species for details of oak classification, in which acorn
morphology and
phenology are important factors.
Contents
As wildlife forage
A group of acorns on a branch
Acorns are one of the most important wildlife foods in areas where oaks occur. Acorns, along with other nuts, are termed
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