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.

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.

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.

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.]

Formidible Persausion - Textual review of the development of evolutionary trees in botany.

Hunt Institute for Botanical Documentation - A division of Carnegie Mellon University. Archives, research, art, and information about the institute are included.

Green Plant Phylogeny - Green plant phylogeny research coordination group.

Plant Tissue Culture Information Exchange - Intended to give researchers, teachers and producers rapid access to information about plant tissue culture.

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.

Plants for a Future - Resource centre for edible, medicinal, and other useful plants.

Botany Encyclopedia - Includes a botanical dictionary, advice for gardeners, and a store selling plants.

Botanica Slovenica - Information on the botany of Slovenia.

Demeter's Genomes - Information on various plant genomes, as well as links and newsletters.

BBC Nature Online - Plant Zone - Includes wildlife videos, games, and competitions.

Oasis Botanical Sanctuary - A environmental organization dedicated to the "Restoration of Ecolibrium" Through the preservation of endangered and threatened plants. A California Nonprofit Public Benefit Corporation.

PalDat - Searchable database related to pollen and palynology. Developed in the Department of Ultrastructure Research and Palynology, University of Vienna, Austria.

Root Biology and Mycorrhiza Research Group - Descriptions of current research projects at the Department of Botany, University of Guelph, Ontario, Canada.

International Plant Genetic Resources Institute - Contains information on IPGRI, resources, and press releases.

About.com Botany - A page of links and articles.

Plants and Our Environment - Contains good basic information. Perfect for younger students studying plants.

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.