Botany
- Associations
- American Association of Botanical Gardens & Arboreta
- American Association of Stratigraphic Palynologists
- American Bamboo Society
- American Botanical Council
- American Bryological & Lichenological Society
- American Fern Society
- American Horticultural Society
- American Orchid Society
- American Phytopathological Society
- American Rose Society
- American Society for Horticultural Science
- American Society of Botanical Artists
- American Society of Plant Biologists
- American Society of Plant Taxonomists
- Arizona Native Plant Society
- Arkansas Native Plant Society
- Asociación Latinoamericana de Botanica
- Asociación Latinoamericana de Fitopatología
- Association of Societies for Growing Australian Plants
- Associazione Italiana Piante Carnivore
- Australasian Plant Pathology Society
- Australasian Plant Society
- Australian Carnivorous Plant Society
- Australian Network for Plant Conservation
- Australian Society for Horticultural Science
- Australian Society of Plant Scientists
- Australian Systematic Botany Society
- Botanic Gardens Conservation International
- Botanical Art Society of Australia
- Botanical Artists' Association of Southern Africa
- Botanical Artists of Canada
- Botanical Society of America
- Botanical Society of Scotland
- Botanical Society of the British Isles
- Botanisch Kunstenaars Nederland
- British Bryological Society
- British Cactus and Succulent Society
- British Phycological Society
- British Pteridological Society
- British Society for Plant Pathology
- California Botanical Society
- California Native Plant Society
- Canadian Association of Palynologists
- Canadian Phytopathology Society
- Chinese Society for Plant Pathology
- Colorado Native Plant Society
- Connecticut Botanical Society
- Council on Botanical & Horticultural Libraries
- Danish Society for Plant Pathology
- Delaware Native Plant Society
- European Foundation for Plant Pathology
- European Plant Science Organisation
- Federation of European Societies of Plant Biology
- Fern Society of Southern Africa
- Field Botanists of Ontario
- Florida Native Plant Society
- Georgia Botanical Society
- Georgia Native Plant Society
- Idaho Native Plant Society
- Indian Phytopathological Society
- Indigenous Flora and Fauna Association
- International Association for Plant Taxonomy
- Association of Plant Biotechnology
- International Association for Sexual Plant Reproduction Research
- International Association of Bryologists
- International Association of Japanese Gardens
- International Association of Vegetation Science
- International Carnivorous Plant Society
- International Federation of Palynological Societies
- International Organization of Palaeobotany
- International Organization of Plant Biosystematics
- International Society for Horticultural Science
- International Society for Molecular Plant-Microbe Interactions
- International Society for Plant Pathology
- International Society of Environmental Botanists
- Iranian Phytopathological Society
- Israeli Society of Plant Sciences
- Italian Phytopathological Society
- Italian Society of Plant Physiology
- Japanese Carnivorous Plant Society
- Koninklijke Nederlandse Plantenziektekundige Vereniging
- Korean Society of Plant Pathology
- Louisiana Native Plant Society
- Malaysian Society of Plant Physiology
- Maryland Native Plant Society
- Mediterranean Phytopathological Union
- Michigan Botanical Club
- Minnesota Native Plant Society
- Montana Native Plant Society
- Native Plant Society of New Mexico
- Native Plant Society of Oregon
- Native Plant Society of Texas
- Nevada Native Plant Society
- New England Botanical Club
- New Zealand Carnivorous Plant Society
- North American Native Plant Society
- Palaeontological Association
- Palaeobotanical Society of India
- Pennsylvania Native Plant Society
- Philippine Phytopathological Society
- Phytopathological Society of Japan
- Polish Phytopathological Society
- Royal Horticultural Society
- Scandinavian Plant Physiology Society
- Sociedad Argentina de Botanica
- Sociedad Chilena de Fitopatología
- Sociedad de Botanica de Chile
- Sociedad de Botanica de Mexico
- Sociedad Española de Fitopatología
- Sociedad Mexicana de Fitopatología
- Sociedad Venezolana de Fitopatología
- Sociedade Botanica de Sao Paulo
- Sociedade Brasileira de Fitopatologia
- Sociedade Portuguesa de Fitopatologia
- Société Française de Phytopathologie
- Society for Economic Botany
- Society of Australian Systematic Biologists
- Society of Botanical Artists
- Southern African Society for Plant Pathology
- Southern California Botanists
- Swiss Society for Phytiatry
- Utah Native Plant Society
- Virginia Native Plant Society
- Washington Native Plant Society