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Acorn

Description:

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.

Notes:

This picture was taken on my backyard, in Northern Virginia.

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DDO
Spotted by
DDO

McLean, Fairfax County, USA

Spotted on Jun 1, 2012
Submitted on Nov 1, 2012

Reference

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