» Botanical Society of America
Promoting research and teaching in all fields of plant biology to facilitate cooperation among plant scientists worldwide and to disseminate knowledge of plants, algae, and fungi. Links to the American Journal of Botany, Plant Science Bulletin, national
» Center for Plant Conservation
Collaborative organization dedicated to conserving and restoring the rare native plants of the United States. Includes information on collections of rare and endangered plants.
» Heritage Forests Campaign
An alliance of conservationists, wildlife advocates, clergy, educators, scientists, and other Americans who are working together to uphold protection of the National Forests.
» Wildflowers of North Eastern North America
Provides a wildflower photo gallery, a species list and a suggested book list and offers a CD-ROM showing over 240 species of wildflowers that are found in north eastern North America available to purchase online.
» Wildflowers: A Closer Look
Reny Parker provides a gallery of photographs of native plants taken in several US states. Search for photos by botanical or common name, family, color or location.