Anthocerotophyta
Anthocerotales, Dendrocerotaceae, Foliocerotales, Anthocerophyta, Anthocerotophyta, Anthocerotophyta, Anthocerotophyta, Classification of hornworts, Hornwort, Hornworts, Hornworts., Sporophyte Foot, Stoma
Bryophyta
Andreaeopsida, Bryopsida, Polytrichopsida, Sphagnopsida, A Fossil Bryophyte, An Introduction to Backyard Mosses, Bryophyta, Bryophyta, Bryophyta, Bryophyta, Bryophyta, Bryophyte DNA, Bryophyte Flora of North America, Bryophyte Herbarium (TENN)
Coniferophyta
Araucariaceae, Cephalotaxaceae, Cupressaceae, Pinaceae, Podocarpaceae, Sciadopityaceae, Taxaceae, Taxodiaceae, Arboretum de Villardebelle, Conifer Central, Gymnosperm Database, Gymnosperms, Native Conifers of North America, Phylum Pinophyta: The Conifers
Cycadophyta
Cycadopsida, Cycadophyta, Introduction to the Cycads, PACSOA - Cycads, The Cycad Pages, The Cycads: Fossils of the Past, University of Georgia Greenhouses - Non-flowering , Virtual Cycad Encyclopedia
Ginkgophyta
Ginkgo biloba, Ginkgo digitata, Ginkgoaceae, Ginkgoales: Fossil Record, Ginkgoites sibirica, Ginkgophytes, Introduction to the Ginkgoales
Gnetophyta
Ephedraceae, Gnetum, Welwitschia, Gnetophyta, Gnetophyta: An Enigmatic Group of Seed Plants, Phylum Gnetophyta (Vessel Bearing Gymnosperms)
Hepaticophyta
Calobryales, Jungermanniales, Marchantiales, Metzgeriales, Monocleales, Sphaerocarpales, Treubiales, Bryophyte Photos, Gemmae, Liverwort Images, Liverworts, Liverworts, Liverworts, Liverworts, Sporophyte, Sporophyte, The Ecology of Asexual Reproduction of Hepatics
Lycopodiophyta
Isoetopsida, Lycopodiopsida, Introduction to the Lycophyta, Lycopodiophyta, Phylum Lycophyta, Phylum Lycophyta
Magnoliophyta
Liliopsida, Magnoliopsida, Angiosperm Images, Angiosperm Phylogeny, Flowering Plant Gateway, OSU Seed Biology Program - SeedID Index, The Families of Flowering Plants
Polypodiophyta
Marratiopsida, Marsileopsida, Ophioglossopsida, Polypodiopsida, Salviniopsida, American Fern Society, British Fern Species, Ferns Around Washington, DC, Ferns et al of New England and Bermuda, Ferns of Barbados, Ferns of Fern Forest and South Florida, Ferns of Great Britain and Ireland, Ferns of the Canberra Region, Filicopsida, Gallery of Connecticut Ferns
Psilotophyta
Psilotum, Tmesipteris, Classification of Psilotophyta, Division Psilotophyta, Fork Ferns, Introduction to the Psilotales, Phylum Psilophyta, Psilophyta, Psilotaceae, Psilotaceae
Pteridophyta
Australian National Herbarium Fern Pages, British Pteridological Society, Checklist of World Ferns, Field Systematic Botany - Pteridophytes: an Overvi, Images of Pteridophyta, Introduction to the Pteridophytes, Natural Perspective - Ferns and Allies (Filicinoph, Pteridophytes, Pteridophytes: Ferns and Fern Allies, Pteridophytes: the Ferns and their Allies
Albion College Vascular Plant Image Gallery
Taxonomically arranged images and summaries of family characteristics.
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.
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.
Dictionary of Botanical Epithets
Glossary of Latin terms used in species names, from abbreviatulus to yunnanensis.
Digital Flora of Texas - Vascular Plant Image Libr
Large collection of photographs, arranged by family.
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.
Forestry Images - Plants
Small collection of plant imagery, from University of Georgia.
Glossary of Roots of Botanical Names
Meanings of over 1000 root words used in scientific names of plants.
Hawaiian Native Plant Genera
Images of hundreds of species of ferns, fern allies, and flowering plants, arranged by genus.
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.
International Plant Names Index
Database of the names and associated basic bibliographical details of all seed plants.
Introduction to the Green Kingdom
Brief introduction to the plant kingdom with links to further information.
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, with common names included, and 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.
Names in Current Use for Extant Plant Genera
International Association for Plant Taxonomy searchable database.
National Herbarium Nederland
Information about the research themes and training undertaken at the national herbarium of the Netherlands, with links to the three contributary universities.
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.
Plants For A Future
Information about a wide range of edible or otherwise useful plants, sorted by names and potential uses.
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.
Synonymized Checklist of the Vascular Flora of the
Full text index of the 1998 version of the Biota of North America Program's checklist.
The Oldest Land Plants
Introduction to the first land plants, known from fossils.
University of Florida Herbarium (FLAS)
The herbarium and the associated paleobotanical collection have combined holdings of approximately 1/2 million specimens. Includes library search, catalog, and project information.
University of Manchester: British Flowering Plants
Searchable, illustrated collection.