| Atlas of the Flora of New England | | Continuing project with annotated checklists of pteridophytes, gymnosperms, and most monocots, with links to dot maps for each taxon. |
| CalFlora Database | | Searchable database all 8375 currently recognized vascular plants in California, including 20000 photographs. |
| Caudiciforms | | Information and photos of many species of caudiciforms - plants with thickened bases. |
| E-Flora BC | | Electronic atlas project for the plants of British Columbia, covering life forms from vascular plants to algae, and topics from identification to scientific collections. |
| Flora of Europe | | Photographic herbarium organized by plant family and genus, with botanical descriptions and photos. Personal project, with about 60 families represented. |
| FloraBase - The Flora of Western Australia | | Authoritative scientific information on 12,000 taxa in Western Australia, including maps, images, descriptions, specimen, and nomenclatural information. Requires registration. |
| Index Nominum Genericorum | | A collaborative project of the International Association for Plant Taxonomy and the Smithsonian Institution, providing a compilation of generic names published for all organisms covered by the International Code of Botanical Nomenclature. | |
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