• American Journal of Botany - Consists of archived issues, current articles, and collected papers.
• Botany Encyclopedia of Plants and Botanical Dictionary - Botany.Com, the Encyclopedia of Flowers and 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.
• Electronic Sites of Botany, Plant Biology and Science Journals - Links to the electronic sites of major journals publishing articles about plants and plant biology.
• 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 Journal of Plant Sciences - Consists of an electronic edition, description of the journal, and subscription information.
• Nature - International weekly refereed journal of scientific research. Free registration for searchable abstracts: full content requires subscription.
• Plant Identification and Activity Books - Acorn Naturalists offers a wide selection of botany books, kits, videos, plant presses and related equipment for studying plants.
• Plant Physiology - Contains current and archived articles, subscription information, and samples.
• Plant Science Bulletin - Contains archived and current issues which are published four times per year.
• Plant Tissue Culture Information Exchange - Intended to give researchers, teachers and producers rapid access to information about plant tissue culture.
• The Plant Cell - Consists of current and archived articles, subscription information, and samples.
• Tree Physiology - Consists of subscription information, online access to articles, links, author information, and announcements.
• Vascular Plant Families - Hosted by the University of Hawaii, this site provides information and images of flowering and non-flowering plant families.