a round or oval opening in a tree trunk a dark spot surrounded by a lighter area the edges of the opening are jagged or curved the wood around the opening may be discolored or decaying the opening may have small insects or other animals visible
knothole which is a round or oval opening in a tree trunk knothole which is a dark spot surrounded by a lighter area knothole which has the edges of the opening are jagged or curved knothole which has the wood around the opening may be discolored or decaying knothole which has the opening may have small insects or other animals visible