See also:

• Home: Gardening: Plants  (2,061)
• Kids and Teens: School Time: Science: Living Things: Plants and Trees  (45)
• Recreation: Outdoors: Wildlife: Plants  (111)
• Reference: Encyclopedias: Subject Encyclopedias: Plants  (5)
• Science: Agriculture  (3,793)
• Science: Biology: Ecology  (791)
• Science: Environment: Biodiversity: Conservation: Plants  (25)
• Science: Environment: Forests and Rainforests  (70)
• Shopping: Home and Garden: Plants  (1,409)
• Society: Issues: Environment: Conservation and Endangered Species: Ecosystems and Habitats: Forests  (47)

• About.com: Botany - A page of links and articles.
• Bioversity International - Provides information, publications and news on a range of subjects including agricultural ecosystems, genebanks, germplasm collection, crop wild relatives and neglected and underutilized species.
• Botanical Authors Database - Search the database of authors who contributed to the contents of the catalog of type specimens in the Harvard University Herbaria.
• Botanical Publications Database - Database of publications used to verify the entry of publication names in the Harvard Herbaria catalog.
• Botanical Society of America Image Collection - Collection of 14 sets of educational images for instructional use, with search capability.
• Botany Encyclopedia - Includes a botanical dictionary, advice for gardeners, and a store selling plants.
• Botresearch USA - a botanical research and biotechnology organization specializing in tissue culture, photomicroscopy, and the production of educational materials for universities.
• Center for Plant Conservation - Collaborative organization dedicated to conserving and restoring the rare native plants of the United States. Includes information on conservation techniques.
• Cladistics or Supercilious? - Textual review of the development of evolutionary trees in botany. Written by Henry Loconte.
• Glossary of Botanical Terms - Contains more than 2,500 terms relating to botany, gardening, horticulture and landscape architecture. Fully searchable and it is regularly updated.
• Green Plant Phylogeny - Green plant phylogeny research coordination group.
• Hunt Institute for Botanical Documentation - A division of Carnegie Mellon University. Archives, research, art, and information about the institute are included.
• Institute for Plant Ecology - Information about research and teaching activities with focus on biodiversity and ecophysiology in different climatic regions, based at the University Münster.
• International Centre for Research and Training on Seabuckthorn - Information on the biology of this plant and its uses for environmental, economic, nutritional, and medical purposes; emphasizing erosion control.
• Max Planck Institute for Plant Breeding Research - Conducts research programs on molecular-biological, genetical, biochemical, physiological and cytological aspects of plant development and plant breeding. [English and German versions available.]
• Plant Tissue Culture Information Exchange - Intended to give researchers, teachers and producers rapid access to information about plant tissue culture.
• Suite101: Botany - Articles on a wide range of plant topics for teachers, students, amateur naturalists and general readers.