Sharing knowledge & resources is one of the biggest benefits of the Web. Here we’ve collected numerous other resources here for you to explore sites beyond Klehm Arboretum. If you have other suggestions for what you might like to see included here, please let us know by contacting us.
Plant Information Online
Use Plant Information Online to discover sources in 1102 North American nurseries for 106952 plants, find 370432 citations to 156910 plants in science and garden literature, link to selected websites for images and regional information about 19131 plants, and access information on 2647 North American seed and nursery firms. Plant Information Online is a free service of the University of Minnesota Libraries.
American Conifer Society
University of Wisconsin Arboretum
Cornell University Woody Plant Database
Iowa State Weed Science Resource
Wikipedia list of botanical gardens in the United States
Oregon State University Woody Plant Identification System
Morton Arboretum on-line plant collection database
The Plant List Collaboration