Clip Art: Trees
The Clipart Wizard: Trees Clipart - A listing of online sources of clipart images of trees and leaves.
BlaikieWell Clipart - A few graphics of the same maple leaf in various colours.
The Online Bonsai Icon Collection - A wonderful collection of bonsai graphics. The tile of the Web site is a bit misleading since many of the graphics are much bigger than icons.
Classroom Clipart - 20+ graphics (photos) of various species of trees.
Trees Clipart - A selection of trees clipart.