November 1, 2014
Burr acorns are massive acorns that contain massive quantities of acorn meat. Their hats (technically “cupules”) are similarly large. Unlike the acorn meat [after a bit of treatment], the hats are entirely inedible. These hairy, scaley coverings are composed of cellulose–though they are sometimes consumed by animals with hardier digestive systems.
(This acorn cupule came off one of many acorns picked up under a Burr oak tree on Austin’s East Side.)
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