Taxonomic Databases

• IPNI: International Plant Names Index - collaboration between The Royal Botanic Gardens, Kew, The Harvard University Herbaria, and the Australian National Herbarium
• ING: Index Nominum Genericorum - collaborative project of the International Association for Plant Taxonomy (IAPT) and the Smithsonian Institution
• PLANTS: USDA Natural Resources Conservation Service Database of North American Plants
• FNA: Flora of North America - Collaborative effort of the Flora of North American Association
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden

General Botanical Web Sites

• Internet Directory for Botany: An index to botanical information available on the internet, jointly compiled by individuals from several institutions.