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Open Directory - Regional: North America: United States: Science and Environment: Plant Life

See also:

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 meetings and symposia, and educational resources.
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.
Forest Cover Types
- Major timber cover type maps for the United States.
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.
Saving the American Elm
- Information about efforts to restore Ulmus americana to the landscape by developing and planting new disease resistant varieties. Includes photos and links.
Wildflower Identification
- A key to wildflowers of Northeastern and Central United States and adjacent Canada.
Wildflowers of the Pacific Northwest
- Informational photo gallery of native wildflowers found in the Pacific Northwest.
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.