Resources

Regional

• California Flora Database
• Colorado Native Plant Society
• Colorado Natural Heritage Program
• Colorado State University Herbarium
• Mountain-Plains Museums Association
• University of California at Berkeley Herbarium & Jepson Herbarium
• University of New Mexico Herbarium
• University of Wyoming - Rocky Mountain Herbarium

National

• American Fern Society
• American Museum of Natural History - Center for Biodiversity and Conservation
• American Society of Plant Taxonomists
• Botanical Society of America
• Center for Plant Conservation
• Harvard University Herbaria
• Missouri Botanical Garden
• New York Botanical Garden
• USDA Animal and Plant Health Inspection Service
• USDA PLANTS National Database

Other Resources

• Botanic Gardens Conservation International
• Celebrating Wildflowers
• Dictionary of Botanical Epithets
• International Code of Botanical Nomenclature
• International Plant Names Index
• Natural Science Collections Alliance (formerly: Association of Systematics Collections)
• NatureServe
• Royal Botanic Garden Edinburgh
• Royal Botanic Gardens, Kew
• Royal Botanic Gardens Sydney