Botanical Word Meanings and Name Derivations - References on California plant names, meanings and derivations from Latin and Greek roots, with biographical information on western botanists and collectors.
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 brasiliensis - Online version of the series of books produced between 1840 and 1906 by editors Carl Friedrich Philipp von Martius, August Wilhelm Eichler and Ignatz Urban with the participation of 65 specialists. [English and Portuguese versions].
Flora of Europe - Photographic herbarium organized by plant family and genus, with botanical descriptions and photos. Personal project, with about 60 families represented.
Flora of Hokkaido - Distribution maps of vascular plants of Hokkaido, Japan.
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.
Hawaiian Native Plant Genera - Images of hundreds of species of ferns, fern allies, and flowering plants, arranged by genus.
herbaria@home - Web-based volunteer project to digitize and catalog museum and university herbarium collections held in the UK.
Illustrated Flora of North Central Texas - Information including keys, descriptions and illustrations of species available in Adobe pdf format by Shinners and Mahler.
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.
Kew Record of Taxonomic Literature - Database of references to publications on the taxonomy of flowering plants, gymnosperms, and ferns.
Kingdom: Plantae - A growing directory of the hierarchy from Kingdom down to species. Includes descriptive pages on selected species.
Land Plants Online - Southern Illinois University's guide to the taxonomic and evolutionary relations among terrestrial plants, with extensive links to other resources.
National Plant Data Center - Responsible for the PLANTS database, which focuses on the vascular and non-vascular plants of the United States and its territories, including checklists, species abstracts, distribution data, crop information, plants symbols and plant growth data.
Natural Perspective: Plant Kingdom - Introduction to the Plant Kingdom with information on some of the divisions which make up this group.
Pacific Northwest Plants - Provides a database for plant identification, culture and usage for the Northwest, including native and introduced species and their major varieties and cultivars.
Photo Herbarium - Einar Vaernes has produced a photograph gallery of Norwegian plants that he has photographed near Trondheim.
Plants For A Future - Information about a wide range of edible or otherwise useful plants, sorted by names and potential uses. Includes a searchable database.
PLANTS National Database - Online USDA database of information, images, and links on plants in the USA, including crops and invasives. Search by name, geographic distribution, or other characteristics.
PlantWorld - Photographic directory of plants from around the world arranged by family and genus.
