Dominion Web Directory : Science : Biology : Botany : Dendrology : Tree

http://forestry.about.com/library/treekey/bltree_key_id_start.htm

» About.com - A Tree Leaf Key
A quick leaf guide for identification of over 50 common North American trees.
http://forestry.about.com/library/treekey/bltree_key_id_start.htm

» Bartosz Pacula's Pictures of Trees
Large photo gallery of cultivated and wild trees in Europe.
http://www.geocities.com/b_pacula/

» Basics of Tree ID
A basic guide to identifying trees. Describes leaves, fruits, barks, with many images.
http://www.fw.vt.edu/dendro/forsite/Idtree.htm

http://www.cnr.vt.edu/dendro/dendrology/main.htm

» Dendrology at Virginia Tech
Includes ID keys and fact sheets on over 450 species of wild and cultivated trees in the eastern USA.
http://www.cnr.vt.edu/dendro/dendrology/main.htm

» Fact Sheets for 680 Trees
Descriptions, illustrations, US range maps, and cultivation of cultivated species from around the world.
http://hort.ifas.ufl.edu/trees/

http://gaia.flemingc.on.ca/~dhendry/nrlfid.htm

» Foliage Identification Test
An interactive guide to identifying trees and shrubs of Ontario. Image intensive.
http://gaia.flemingc.on.ca/~dhendry/nrlfid.htm

http://gaia.flemingc.on.ca/~dhendry/trelec.htm

» Introduction to Tree Identification
A resource for beginners and others. Includes a collection of descriptive graphics showing leaves, and buds, with notes.
http://gaia.flemingc.on.ca/~dhendry/trelec.htm

» Palm Tree Photo Gallery
Over a thousand photographs of palms from around the world.
http://www.junglemusic.net/palmgallery.htm

» Plant Kaleidoscope
Large image gallery of cultivated woody plants in Europe.
http://www.biologie.uni-ulm.de/systax/dendrologie/

» SelecTree for California
A tree database for California. Includes non native trees.
http://selectree.calpoly.edu/

http://members.tripod.com/~Hatch_L/tlan.html

» Taxonomy of Woody Plants
Links on woody plant taxonomy including original identification keys to major genera.
http://members.tripod.com/~Hatch_L/tlan.html

http://gaia.flemingc.on.ca/~dhendry/nrtwitst.htm

» Twig Identification Test
Interactive identification of leafless twigs and axillary buds. For the trees and shrubs of Ontario.
http://gaia.flemingc.on.ca/~dhendry/nrtwitst.htm

» What Tree is it?
Tree identification. Especially useful way to work from the shapes of leaves.
http://www.oplin.org/tree/index.html