botany
| Algaebase | Information on freshwater, terrestrial, and marine algae. Search for genera, species, common names, pictures, or literature. |
| Andean Botanical Information System | Michael Dillon, Field Museum of Natural History. Species checklists, detailed color photographs, bibliography, links, etc. |
| Botanical Society of America | News, conference information, links to full text publications, links to botany related sites, membership information, etc. |
| eFloras | Missouri Botanical Garden. Text plant descriptions with some illustrations. |
| Flowering Plant Gateway | Texas A&M. Search by family name for information and images, compare the Cronquiest, Takhtajan, and Thorne classification systems, many links. |
| Forestry History Society Research Resources | Publications available at the Society's library (28,000 annotated citations) related to forest history, land use, public policy, environmental issues, wildlife, ecology, range science, etc. |
| Forestworld | Links to over 4,000 sites relating to forestry and wood products, information about species of trees, forestry in 140 countries, conference sites, etc. |
| Guide to Poisonous Plants | Colorado State University. Information on more than 100 poisonous plants including common and botanic name; color photograph; description; habitat; animals (including people) affected; toxic principle; gastrointestinal, nervous, integumentory, and other system symptoms; and treatment. Search by common name or symptom, e.g., lameness, vomiting, weight loss, death. There is a glossary, with drawings of plant parts, and definitions of each. Links to other Web resources include poison centers and medicinal and poisonous plant databases. |
| Hunt Institute for Botanical Documentation | Carnegie Mellon Univesity. Biographical information on botanical artists, images, taxonomic glossary and information, etc. |
| International Plant Names Index | Authoritative plant taxonomic database. |
| Internet Directory for Botany | Harvard/University of Helsinki. Searchable list of links arranged alphabetically and by subject. Find places, societies, groups, taxonomic information, herbaria, etc. |
| Missouri Botanical Garden | Includes extensive botany-related resource links. |
| Online Image Collection | Fourteen collections of images: plant geography; plant morphology; phloem development; xylem development; floral ontogeny; lichens; economic botany; carnivorous plants; organography; pollen; paleobotany; plant defense mechanisms; plant anatomy; cellular communication channels. |
| Parasitic Plant Connection | Southern Illinois University Carbondale. Distribution maps, species information, DNA information, descriptions, images, and bibliographies. Glossary, links, etc. |
| Plants-in-motion | Time lapse movies showing different phases of plant growth, plus more information on plants. |
| Scott's Botanical Links | University of Oklahoma. Searchable huge list of links arranged by subject and date added, with brief description. |
| Society of American Foresters | Information, news, links. |
| Tree of Life:Phylogenic Navigator | David R. Maddison and Wayne P. Maddison. Information about phylogeny and biodiversity. Organizes, surveys, and displays the diversity, evolutionary history, and characteristics of all groups of living organisms. The great Tree has roots, a trunk, stems, and branches that connect each organism to all others. |
| Vascular Plant Image Gallery | Texas A&M University. Over 8800 plant images. Access is by family-level browsing or keyword. |
| What is Photosynthesis | Arizona State University. Annotated collection of links. |