urbpan: (oak man)
urbpan ([personal profile] urbpan) wrote2010-01-08 07:57 pm

Urban Nature Pictures day 8



Oak burl with dusting of snow and acorn mast.

A burl is a rounded outgrowth of a mature tree, often a response to an injury. Acorn mast is the meat of the nut, left behind when the nut is opened (in this case by squirrels), and can serve as a winter food source for various kinds of wildlife.

Post a comment in response:

This account has disabled anonymous posting.
If you don't have an account you can create one now.
HTML doesn't work in the subject.
More info about formatting