Dendrology at Virginia Tech - Find fact sheets on over 180 species of trees, as well as other class information.

Forestry 111 Dendrology Home Page - Designed to supplement teaching of this course.

Taxonomy map for Trees - Searchable taxonomy map from University of British Columbia.

Tree Root Architecture - Information on research of tree root architecture, root excavation, 3D-digitising of root systems, tree root growth, tree stability, and windthrow.

International Dendrological Research Institute - Nonprofit organization dedicated to documenting the woody flora worldwide.

Tree Matters - Site for The Dendrologist, a quarterly magazine. Also contains tree tips and a record of the dates of upcoming dendrology events in the UK.