American Botanical Council Library of reliable information on medicinal plants
Bibliotecas Virtuales en Espana These digital libraries contain many botanical and natural history titles
Bibliotheca Antiqua Hundreds of herbals and other classic antiquarian botanical texts
Biodiversity Heritage Library (BHL) A consortium of natural history libraries digitizing the literature of biodiversity.
BISC Life sciences resources reference shelf
Botanicus.org An encyclopedia of historical botanical literature.
BPH Online Index of natural science periodical title abbreviations
Classic Herbal Texts Collection of nineteenth and early twentieth century herbal texts
Council on Botanical and Horticultural Libraries, Inc. (CBHL)
DART Europe E-theses Portal Search European theses and dissertations
Digital Library of the Royal Botanic Garden Madrid Books and journals pertaining to Iberian, Latin American and Philippine flora
Early Classics in Biogeography Biodiversity and Ecology
Ebooks Catalog of electronic books available worldwide
Encyclopedia of Life Collaborative encyclopedia documenting all known living species
European Botanical and Horticultural Libraries Group (EBHL)
European Digital Library of Written Cultural Heritage Manuscriptorium Project provides millions of pages of digital manuscript material
Europeana Search the digital cultural collections of Europe
Gallica hundreds of French botanical works digitized
Gardening Digital Library Hundreds of links to websites and digital resources
German botanical journals 1754-1914 Consortium of 26 German libraries digitizing botanical literature
Google Books Thousands of titles added every week
Hathi Trust Shared digital repository with over 7.6 million texts from American universities
Internet Archive Digital Texts Containing dozens of horticulture, landscape and botany classics
Networked Digital Library of Theses and Dissertations From UNESCO, an international database of full text theses
Online Neo-Latin Texts Guide to Renaissance Latin texts online
Public Library of Science Growing collection of open access science journals
PubMed National Library of Medicine database of biomedical journal articles back to 1948
The European Library Searches the content of European national libraries
WorldCat Most comprehensive global library catalog resource available
AGRICOLA, National Agricultural Library On-Line Catalog
Archives and Manuscript Collections A selected guide to locating archives and manuscript collections around the world.
Archives of American Gardens Photos and records documenting over 6,000 American gardens
ArticleFirst Index of articles from over 16,000 journals from 1990 to the present
Catalog of Living Collections Search the plant collections of dozens of botanical gardens
ClasePeriodica Index of over 2,700 Latin American journals from 1975 to the present
ECO Full text scholarly journal articles from 5,500 social science and humanities journals
ERIC Educational resources information center
GPO U.S. government publications
HOLLIS, Harvard University On-Line Catalog (includes Botany Libraries)
Library of Congress Catalogs
LibWeb Links to over 8,000 library catalogs arranged by geographic location
LOCATOR, National Library of Medicine Catalog
MOLIB, Missouri Botanical Garden Library On-Line Catalog
OAIster Union catalog of digital resources
PapersFirst Index of over 7 million conference papers from 1993 to the present
Proceedings Index of worldwide conference proceedings from 1993 to the present
Royal Botanic Garden Kew Library Catalogue
SIRIS, Smithsonian Libraries Catalog
World Almanac and Book of Facts Four almanacs and the Funk & Wagnalls New Encyclopedia
WorldCat Dissertations An index to over 8 million dissertations and theses
AlgaeBase Botanical information on terrestrial, marine and freshwater algae
Angiosperm phylogeny Plant evolution systematics textbook
BibliOrchidea Most comprehensive orchid literature bibliography
BIOSIS Previews Most comprehensive life sciences literature database
Botanical Education Resources Educational resources for teachers and students
Botanical Illustration Bibliography A guide to resources for illustrators, historians, and collectors.
Botany glossaries, dictionaries and encyclopedias Number of links to a variety of reference resources
Bryological Glossary Electronic comprehensive glossary of bryological terminology
BSA Image Collection Botanical Society of America collection of teaching images
Catalogo de Plantas e Fungos do Brasil Information on the 41,000 flowering and non-flowering known species of Brazil
Checklist of Ferns Ferns and fern allies classified taxonomically
Convention on Biological Diversity United Nations treaty promoting sustainable development
Dictionary of Natural Products The only comprehensive and fully-edited database on natural products.
eFloras.org Floras, checklists, keys, and image galleries for many ongoing floristic projects.
Flora Brasiliensis Largest flora ever published
Fungal Database US National Fungal Collection search names, hosts, literature, specimens
Global Biodiversity Information Facility Offering publications, meeting notices and data sharing software
Glossary of Pollen and Spore Terminology Illustrated glossary explaining structures and features
GrassBase Detailed information about all grass species
Guide to Plant Species published in Seed Lists 1800-1900
Gymnosperm Database Classification, description and ecology of conifers
How to Name and Register a New Cultivar
IDB, The Internet Directory for Botany thousands of botanical websites indexed
ILDIS Legumes of the World Classification, description, distribution and common names of legumes
Index Fungorum Index of accepted nomenclature for global fungi
Index Herbariorum Directory of herbaria around the world
Index Nominum Algarum Taxonomic names of over 200,000 algae
Index Nominum Genericorum A compilation of the generic names of plants
Index to American Botanical Literature An index to botanical literature of the Americas published since 1995
Internet Resources for Bioinformatics Bioinformatics related websites, databases and tutorials
Internet Resources for Bryologists & Lichenologists Links to checklists, floras, herbaria, publications and organizations
IPNI, International Plant Names Index Standard reference for plant nomenclature
ITIS, Integrated Taxonomic Information System Authoritative taxonomic information on plants, animals, fungi, and microbes.
Kew Bibliographic Databases
LIAS Checklists A Database with Distribution Data of Lichens and Lichenicolous Fungi
Medline US National Library of Medicine life sciences database from 1950 to the present
Native American Ethnobotany Database Foods, medicines, dyes, drugs and fibers all searchable by tribe
Nature Serve Scientific data on endangered species and threatened ecosystems
New York Area Biodiversity Research and Conservation Database (NYBD)
NGA GEOnet Names Server Standardized names for global topography
Phytochemical Plant Database Over 19,000 plant chemicals and their sources
Species 2000 (Indexing the world's known Species)
The Plant List A working list of all known plant species flowering and bryophyte
Tree of Life Web Project Biodiversity and evolutionary information for all species living or extinct
U.S. Gymnosperm and Grass Keys Interactive keys for all U.S. gymnosperm and grass species
US Board on Geographic Names Standardized names for US geographic nomenclature
Web of Science Search over 9,500 journals across the sciences, social sciences and humanities
||Pictures of Plants
American Mushrooms An introduction to their variety
Carnivorous Plant Database
CATENA, the Digital Archive of Historic Gardens and Landscapes
MykoWeb Vast array of sites devoted to fungi, mushrooms, and mycology.
Native Plant Database Search for American native plants by state.
Native Wildflowers Image Database
Plant Image Collection Over 30,000 images of plant species and habitats
Plant Systematics Over 26,000 images of vascular plants
Rock Garden Plants
Tree Encyclopedia Over 400 North American species illustrated
USDA Plants Photo Gallery
||Information About Plants
A Modern Herbal Over 800 herbs described and prescribed.
Acta Horticulturae Full text proceedings of ISHS Symposia and International Horticultural Congress
Algae The US Algal Collection of some 300,000 specimens described.
American Orchid Society Directories for locating and cultivating orchids.
American Public Gardens Association (APGA) Public Garden search.
Arbor Day Foundation Learn about the benefits, care and selection of trees for your area
Botanic Gardens Conservation International Plant Search Locate rare and threatened plants in cultivation around the world
Center for Aquatic and Invasive Plants Nearly 500 plants described and photographed.
Center for Plant Conservation American conservation resource directory and Guide to the National Endangered Collection.
Checklist of Online Vegetation and Plant Distribution Maps Many interesting historic and contemporary maps.
Dictionary of Common Names Index of 30,000 Latin and common plant names
Essential British Gardens Guide to the finest gardens and arboreta in the UK and Ireland
EthnoBotDB Seach plants by common name, country or over 2600 uses
Find My Roses An online guide to over 31,000 cultivars and their growers.
Flora of New York State search native plants of New York state by county
Forestry Images Over 16,000 images of healthy forests, diseases, damage and logging
Garden Guides Handy guides for many kinds of garden procedures, designs and plantings
History of Horticulture Important figures in horticulture from the past two thousand years
Index of Rainforest related sites Resources on rainforests, sustainable forestry and forest conservation
International Carnivorous Plant Society Species descriptions, cultivars, and photographs.
Introduction to Lichens Basic guide to lichenology.
Introduction to the Fungi Basic introduction to the world of mycology.
IUCN Redlist of Threatened Species Authoritative listings of threatened and endangered plants.
Landreth Seed Commemorative newsletters History of gardening and nursery industry in 19th century America
National Gardening Association Wide variety of garden related content for consumers and educators
National Invasive Species Information Center Invasive animal and plant species searchable by geographic location
Natural History: atlases, gazetteers, GIS and maps Extensive list of map resources and geographical names
New york State Urban & Community Forestry Council Resources for tree identification, street trees and urban forestry
NGA Plant Finder Choose plants from many categories to meet your gardening needs
Plant facts Multimedia horticulture center with dictionary, FAQ's, videos from Ohio State
Plant Information Online Locate plants from over 1,100 North American nurseries
Plant Viruses Online Scientific information on all known plant viruses.
PlantFacts Database of fact sheets and bulletins from all US land-grant colleges
Poisonous Plants Images and information on hundreds of known plant poisons and their effects.
Pronunciation Guide for Latin Plant Names Hear the Latin pronunciation of thousands of plant names
RHS Horticultural Database Search awards, pests, propagation and literature by plant name
RHS Plant Selector Over 70,000 plant species described, photographed and indexed
Seaweed Site Information on the types, uses and classification of marine algae
Silvics of North America USDA guide to the trees of North America
Succulent Plant Page Information on collecting, cultivating, and conserving all manner of succulents.
The 12 Soil Orders Orders of known soil types classified, described and mapped
USDA Plants Database Standardized information about the flowering and non-flowering plants of America.
Virtual Palm Encyclopedia All aspects of palms discussed.
||NYBG Repository Archives
American Association for the Advancement of Science
American Fern Society
American Iris Society
American Society of Plant Taxonomists (ASPT)
ArchiveGrid search archival collections held in museums and libraries worldwide
Association for Tropical Biology (ATB)
Council on Botanical and Horticultural Libraries (CBHL)
Mycological Society of America (MSA)
North American Rock Garden Society (NARGS)
NUCMC National Union Catalog of Manuscript Collections
Organization for Flora Neotropica (OFN)
Repositories of Primary Research Resources Enhance your research locating original and unique resources
Society for Economic Botany (SEB)
Taxonomic Literature 2 Standard reference for plant taxonomic literature
Torrey Botanical Society
Using Archives: A Practical Guide for Researchers