Botanical Websites
- Plants of the Pacific Northwest
- Herbaria, museums and botanical gardens
- Flora projects and flora databases
- Phylogeny, Taxonomy and Nomenclature
- Ethnobotany
- Poisonous Plants
- Bryophyte and Lichens
- Gardening and Horticulture
- Botanical Directories
Plants of the Pacific Northwest
- Idaho Native Plant Society
- Washington Native Plant Society
- The Flora of Mount Rainier National Park
- Washington Flora Project
- Invaders
Other Herbaria, Museums and Botanical Gardens
Databases:
International:
- Australian Environment On-Line
- British Museum, Department of Botany
- Royal Botanic Gardens Kew
- National Botanical Institute-South Africa
North America:
- Missouri Botanical Garden
- National Museum of Natural History (Smithsonian)
- New York Botanical Garden
- Oregon State University Herbarium
- Texas A & M Herbarium
- University of California, Berkeley Herbaria
- University of Florida Herbarium
- Montana State University Herbarium
- University of Idaho's Stillinger Herbarium
- University of Montana Herbarium
- University of Washington Herbarium
- California Academy of Science
- University of Wyoming's Rocky Mountain Herbarium
- Field Museum
- Utah State University's Intermountain Herbarium
- University of Minnesota Herbarium
- University of British Columbia Herbarium
- Rancho Santa Ana Botanic Garden
Flora Projects and Flora Databases
International:
- Andean Botanical Information System
- Flora of Australia
- Flora of China
- Flora of Central French Guiana
- Flora and Vegetation of Nepal
North America:
Plant Systematics and Evolution
- Authors Database
- USDA Plants Database
- RBG Kew Databases (Vascular Plant Names, Authors of Plant Names, Index of Angiosperm DNA Amounts)
- Integrated Taxonomic Information System
- International Code of Botanical Nomenclature
- The Tree of Life
- TreeBase
- International Plant Name Index
- Tropicos (Missouri Botanical Garden)
- GRIN Taxonomy
- Angiosperm Phylogeny website
- USDA Systematic Botanical & Mycology Labratory
- The Families of Flowering Plants
Ethnobotany
- American Indian Ethnobotany Database
- Ethnobotany Cafe
- Ethnobotany Database (National Agricultural Laboratory)
- Ethnobotanical Leaflets (a web journal)
- Introduction to Ethnobotany
- Plants and People Initiative
- Society for Economic Botany
Poisonous Plants
- Canadian Poisonous Plants Information System
- Cornell University Poisonous Plants Website
- Plant Poisonous to Livestock and Pets
- Plants Toxic to Animals
- University of Pennsylvania Poisonous Plants Website
Bryophytes and Lichens
- American Bryological and Lichenological Society
- Endangered Mosses and Liverworts
- Fun with Lichens
- North American Bryophytes, Catalog
- Bryology (Missouri Botanical Garden)