The LumberWorksForums

Identify by name:

Arbor Day Foundation
Limited database with few and poor line drawings. No photographs and no usage or historical info.

Learning To Identify Trees Of British Columbia
Online book

Forestry Images .org
Large database with many images

Louisiana Ecosystems & Plant Identification An Interactive Virtual Tour
Unique presentation using a movie-slideshow approach. Clear large images. No usage or historical info. Still a work in progress.

Native Trees of Kentucky
Incomplete list of Kentucky's native trees. Few pictures. But their fact sheets are good.

The Nobel Foundation Plant Image Gallery
Large database.

NC State University
Large database but few images per tree.

UConn Plant Database
Large selection, ez to use.

Ohio Trees Index
Limited selection of trees but good images, site requirements and wood usage info.

Oregon State University Landscape Plants Images, Identification, and Information
Extensive database. But I haven't found any usage or historical info.

Salsibury University Arboretum

USDA Plants Database
Extensive list. Varible quality and availability of images. Wood qualities and usage info included. Range maps included.

USDA Silvics Manual - Volume 2: Hardwoods
This is a large interactive PDF file. At over 1700 pages it takes a long time to load.

Dendrology at Virginia Tech
Extensive database. Images are small but clear. Printing is small and hard to see. Landowner fact sheets (historical uses, fun facts, etc.) are excellent but not all species include them.

Vanderbilt Bioimages
Large database. Excellent quality images and many per specie. Some comparisons done on hickory and others. No usage or historical info. This site is very tricky to use but very rewarding.

What tree is it?
Small database but well presented. Not enough images but good historical and usage info.

Identify by leaf/fruit/etc.

Arbor Day Foundation Tree Identification Guide

UConn Plant Database

Discover Life

VT Dendrology Leaf Key

What Tree Is It?