Links

Choose one of the categories above for a list of plant-related websites. Selected websites are all non-commercial, without advertisements, and free-access sites. The links provided have all been checked as of March 1, 2018; however, websites are occasionally moved or deleted without notice by the authors or sponsoring agency. If you do encounter a link that no longer works or a website that has changed location, please report the problematic link to the NOPD so that we can update the link.

U.S.A. (General or Regional)

A Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands

A list of vascular plants in the U.S., published by John Kartesz in 1998, with distribution maps by state. Information can be accessed by browsing or searches.

Bioimages (US)

A website hosted by Vanderbilt University in Nashville, TN, that includes excellent information on the plants and animals of the southeastern US, with a focus on middle Tennessee. This website contains separate access pages to webpages on trees and woody plants, non-seed plants, herbaceous plants, invasive plants, and various habitats.

BONAP (The Biota of North America Program)

This website includes information on the expanded Biota of North American Program, by John Kartesz, University of North Carolina. Included are county-level distribution maps for species in the U.S. Unfortunately for Canadian botanists, County-level or District-level data on vascular plant distribution is not widely available, but this resources is still extremely useful to get a better understanding of our North American flora.

East Coast Native Azaleas

The Middle Atlantic Chapter of the American Rhododendron Society has compiled a series of beautiful webpages on the azaleas, all members of the genus Rhododendron, native to eastern North America. Many of these species are now grown as cultivated shrubs.

Federal Noxious Weed Disseminules of the U.S.

A useful website by Julia Schur, APHIS (USDA), with descriptive pages and images of seeds of species classified as noxious weeds in the U.S. Select the Fact Sheets link to access the list of noxious weed species.

Fire Effects Information System (FEIS)

A very useful website with information on the fire ecology and effects of fire on both plant and animal species. To access the ecological information on forest species, click on the species acronym in front of each name in the Species Reviewspage.

Friends of the Wild Flower Garden

Formerly known as "Friends of the Eloise Butler Wildflower Garden", this fabulous website features some of the best webpages on wildflowers of the north-central US, most of which are also found in Canada. Access the wildflower webpages from the Photo Gallery link. Excellent descriptive information and several clear images of each species are featured on each page. If you live in the Minneapolis area, you will definitely want to visit these gardens.

Invasive and Exotic Plants in the U.S.

A good source for information and images of invasive & exotic species in the United States. A joint project of The University of Georgia's Bugwood Network, the USDA Forest Service, and the USDA APHIS PPQ. This website now includes links to the , Federal Noxious Weeds, and State Noxious Weeds webpages.

Lady Bird Johnson Wildflower Center – Native Plants Database

The mission of the Wildflower Center is to inspire conservation of native plants. To find a species description or image, enter a common or scientific name in the dialogue box, or select a plant family from the list directly below the dialogue box, then hit "Search" to get links to the appropriate species. There is also a useful Special Collections page from which you can browse by State, species with value to beneficial insects, or a number of other interesting options.

National Invasive Species Information Centre - Plants

An informative website from the U.S. Department of Agriculture that features profiles on many plant species that are, or have the potential to become, invasive in Canada.

Non-seed-bearing plants of the Southeastern U.S.

A pteridophyte website from Bioimages, hosted by Vanderbilt University, Nashville, TN.

PLANTS Database

The PLANTS database is a comprehensive website from the U.S. Dept. of Agriculture. It includes taxonomic information and county-level distribution maps for all species found in the United States. New photographs and images from Britton and Brown's 1913 classic book, An Illustrated Flora of the Northern United States and Canada, have added to the value of this website.

Plants of the Northeastern United States

This website by Michael Hough features his terrific photographs of the native flora of New York State and the surrounding states. Access the webpages from this alphabetical species list or by flower colour. Note that each webpage contains several images, which can be viewed by clicking the Forward or Back links.

Smithsonian Institute's Department of Botany Collection

An extensive library (digital image and illustrations) of 15,000 plant species for non-commercial public use is provided by the Smithsonian Institute in Washington, DC. And of interest to botanical researchers is the Botanical Type Register, also accessible on this website.

Southeastern Flora

An extremely useful and attractive collection of images by John R. Gwaltney of the flora of the southeastern regions of the U.S. Also included is a simple interactive way to help identify unknowns.

Southern Appalachian Wildflowers

A great collection of absolutely stunning wildflower images by Rich Stevenson. Once you see his pictures of Oconee bells and yellow fringed orchid, you'll want to see them all!

Virtual Herbarium - Intermountain Region of Western U.S.

Search the Vascular Plant Catalog of the Intermountain Region of Western U.S., a Virtual Herbarium from the International Plant Science Centre at the New York Botanical Garden.

Weed Identification Guide - Field Weeds

A website by James Altland, from Oregon State University, on weedy species from crop fields. Each species page includes a variety of images, such as habit, foliage, flower, and stems.

Wetland Flora Field Office Guides

While no longer available on the web, regional (Midwestern) editions of the former USGS series of wetland plant field guides can be downloaded from this website, hosted by the USDA Natural Resources Conservation Service.

Wildflowers of Northeastern and North-Central U.S.A.

A non-technical website with excellent wildflower images from Eleanor Shelton; one of the most attractive wildflower sites on the web.

Woody Plants of the Southeastern U.S.

A website from BioImages, hosted by Vanderbilt University, Nashville, TN. Dendrology students will find the comparisons of oak, hickory, and maple species particularly useful.

Alabama

Alabamaplants.com

A new website from Dan Tenaglia, the author of "Missouriplants.com", with equally wonderful images.

Trees of Alabama and the Southeast

A well-organized website on trees of the southeast U.S. for dendrology classes, by Lisa Samuelson, Auburn University. Non-technical descriptions and several images of each tree species are provided; click on the image provided to access additional images.

Alaska

Alaska Native Plant Society

The Alaska Native Plant Society offers seasonal wildflower walk, while members and volunteers participate in weed-pulls to control invasive species in their State. This website offers a number of links to other organizations and websites of interest to viewers.

Alaska Wildflowers and Shrubs

An image collection of Alaskan flowering plants and shrubs by Matt Goff. Visit Matt's home page to access his Hiking Journal and Photo Journal, packed with bird, whale, and landscape images from the Sitka region of Alaska. His website on Sitka Nature also provides great images from southern Alaska.

Alaska Wildflowers.us

This website features digital images of over 300 species of plants and fungi from the area of Central Alaska. Click on a thumbnail image to access the selected species page, which incudes several images of each plant, each with a useful caption.

Alaskan Plant and Animal Field Guides

A number of excellent resources can be found on this website, offered by the Alaska Centre for Conservation Science, from the University of Alaska at Anchorage, AK. Among other gems, you can download a PDF copy of the entire historically important 724 page book Anderson's Flora of Alaska, updated by Stan L. Welsh in 1974, George Argus's Key to the Salix (willows) of Alaska and the Yukon and a Field Guide to 77 Alaskan Wetland Sedges Species.

Alaskan Wildflowers

This website, by Mary Hopson, features beautiful images of wildflowers organized by colour. Click on the thumbnails to view the full image.

Arctic Flora of Canada and Alaska

For those who want to know more about the Arctic Flora of North America, everything you'd hope to find is right here. The project, led by Lynn Gillespie and Jeff Saarela, is ongoing, so this website will grow with time.

Flora of Denali National Park and Preserve

A comprehensive website by Paul Slichter of very good images of wildflowers, graminoids, ferns, fern allies, and bryophytes, and lichens of Denali National Park, Alaska.

Toolik-Arctic Geobotanical Atlas

This interesting website, from the Institute of Arctic Biology at the Univ. of Alaska Fairbanks, features a collection of geobotanical maps, along with images of arctic vegetation types and plant communities.

Wildflowers of the National Forests in Alaska

The PDF version of this attractive 12-page booklet features images of 50 of the more common wildflowers of Alaska.

California

Henry W. Coe – Wildflower Guide

A collection of great wildflower images from Henry W. Coe State Park in the San Francisco Bay Area of northern California. Flower images are arranged according to colour, scientific name, or common name. Additional natural history information is also presented about the park.

California Wildflowers - California Academy of Sciences

Using the buttons at the bottom of this homepage, browse this collection of wildflower images by Flower Colour, Family, Latin Name, or Common Name. This website from the California Academy of Sciences includes 3 images and a county-based distribution map for each species.

CalPhotos: Plants

A comprehensive collection of southern California floral (and other) images from various sources, presented by the University of California-Berkeley.

Plants of the Kaweah River Delta Region, California

Very nice webpages with clear images of California plants, compiled by Robert Urtecho, College of the Sequoias, Visalia, California.

Trees of Southern California

A website of excellent image by Michael L. Charters on tree species of southern California. Each species is represented by an image of the trunk (showing the bark) and the leaves (and/or the fruits).

UC-IPM Online - Weed Photo Gallery

An image gallery from the Statewide Integrated Pest Management Program, Agriculture and Natural Resources Dept., University of California-Davis. Select a plant by broadleaf, grass, sedge, or aquatic plant form.

Wildflowers and Other Plants of Southern California

A very interesting website of great images by Michael L. Charters, with links to webpages on Botanical Terms and Pronunciation of scientific names. A good website to search if you want to explore a new flora or delve deeper into botanical names and their meanings. Scroll down to the bottom of the link "About the Photographer" for a list of other interesting websites by Michael.

Wildflowers - Death Valley National Park, CA, NV

A website of wildflower images from Death Valley National Park in western California. A brief list of blooming times and plants to look for at those times is also provided.

Colorado

Colorado’s Major Tree Species

An attractive website from Colorado State Forest Service with basic descriptions and good images of 20 common tree species native to Colorado.

Wildflowers, Ferns, & Trees of Colorado, New Mexico, Arizona, and Utah

A beautiful website of the southwestern flora with excellent field and closeup images, as well as detailed descriptive information on each species, by Al Schneider, and hosted by the Rocky Mountain Biological Laboratory, Gothic, CO. Search by plant names or characteristics.

Connecticut

Connecticut Ferns

A very useful collection of fern images from the Connecticut Botanical Society.

Connecticut’s Invasive Aquatic and Wetland Plants

This PDF file provide well organized and attractive information sheets to 22 invasive species. A key to the species is provided, as well as information on how to differentiate between similar species, and what to do if you encounter one of these species in Connecticut lakes. I recommend you download a PDF copy of this very useful publication.

Gallery of Connecticut Wildflowers

A truly delightful website on eastern North American wildflowers from the Connecticut Botanical Society, showcasing the photography of Eleanor Saulys and Janet Novak (and others).

UCONN Plant Database of Trees, Shrubs, and Vines

A very good website on cultivated plants from the University of Connecticut's College of Agriculture in Storrs, CT. Included are dichotomous keys to the woody species and descriptive Plant Pages, accessed by species name or traits.

Delaware

Delaware Wildflowers

A beautiful website of stunning wildflower photographs by David G. Smith; well organized, easy to navigate.

Florida

Aquatic and Wetland Plants and Invasive Plants - Photo Gallery

The University of Florida's Centre for Aquatic and Invasive Species presents this website of aquatic and invasive species in Florida. Many of the webpages include excellent images and line drawings of Florida’s aquatic and invasive plant flora, some of which may be found in our area. Select from the link to species lists of emergent, submergent, or free-floating aquatic plants.

Atlas of Florida Plants

An excellent website compiled by Richard Wunderlin of the Institute for Systematic Botany (ISB), University of South Florida. Viewers can search for herbarium specimens or browse the species list by Scientific Name or Common Name.

Georgia

The University of Georgia Herbarium

This website is under construction, but previously included a collection of wildflower image, organized by scientific name or family. At least 4 new images collections are planned, including Georgia Wildflowers and Poisonous Plants of Georgia, so watch for these pages if you're interested in the Flora of Georgia.

Wildflowers on the Trail

Twenty three pages of wildflower images from trails in the Southern Appalachian and Blue Ridge Mountains are presented in this website by Tony Presley. Most images are from Georgia or North Carolina. This website also includes images of 22 Appalachian hiking trails.

Hawaii

Flowering Vascular Plant Families

This website on the vascular plants of Hawaii, by Dr. Gerald D. Carr, Univ. of Hawaii, provides links to excellent photographs of the Hawaiian flora. Families are organized according to the Angiosperm Phylogeny Group (APG) Classification, with families listed alphabetically under the appropriate Order. If you are unfamiliar with the APG classification, search for the family name using your browser "Find" feature.

Non-Flowering Vascular Plant Family Access Page

Another part of Dr. Gerald D. Carr's excellent website on vascular plants from the University of Hawaii; includes excellent images of Gymnosperms and Pteridophytes.

Idaho

Flora of Eastern Washington and Adjacent Idaho

This excellent collection of fabulous images by brothers, Dr. Robert Carr and Dr. Gerald Carr, will certainly make you want to visit Washington State and surrounding areas to see these beautiful flowers in person.

Illinois

Bryophytes - Mosses, Liverworts & Hornworts

Southern Illinois University-Carbondale is very well known for its work in bryology. Click on the Bryophyte Images link along the left side of the webpage to access the species images. If you're new to the study of bryophytes, read this article on Bryophytes describing the basic traits that define this group.

Central Illinois Wildflowers

A very attractive collection of Illinois wildflowers images from Joseph E. Filer.

Grasses, Sedges, Rushes, and Non-Flowering Plants in Illinois

Excellent photographs, descriptions, and Illinois range maps for graminoid and pteridophyte plants. Part of the Illinois Wildflowers webpages by John Hilty.

Illinois Wildflowers

A series of excellent websites by John Hilty, including Prairie Wildflowers, Savanna and Thicket Wildflowers, Wetland Wildflowers, Woodland Wildflowers, Weedy Wildflowers, Grasses, Sedges, and Non-Flowering Plants. Each webpage includes excellent images and very good descriptive information. A great site for botany students to bookmark.

The Tall Grass Prairie in Illinois

A great website on prairie species, biodiversity, and restoration by Ken Robertson, a botanist with the Illinois Natural History Survey.

Trees, Shrubs, and Woody Vines of Illinois

An excellent website of the woody plants of Illinois by John Hilty. Each webpage includes excellent images and very good descriptive information. A great site for dendrology, forestry, and botany students to bookmark.

vPlants: A Virtual Herbarium of the Chicago Area

An online resource for Plants and Fungi, offering specimen data and images, species descriptions, county distribution maps, and photo galleries. This excellent website is a cooperative effort of the Field Museum of Natural History, The Morton Arboretum, and the Chicago Botanic Garden.

Weedy Wildflowers of Illinois

The best illustrated and descriptive information on weeds in North America, by John Hilty; part of his Wildflowers of Illinois series.

University of Illinois Extension – Wildflowers

A collection of good wildflower images of Illinois wildflowers with basic descriptive information. View additional images from the thumbnails along the right margin of each description page.

Indiana

A Guide to the Wildflowers of Twin Swamps Nature Preserve

Images and brief description of wildflowers from Twin Swamps, Posey County, Indiana, are presented in this attractive website. Search by season, habitat, or flower colour, or access the images through this Plant Index.

Butler University Friesner Herbarium Digital Collection

This excellent collection of digital images of the 20,000 herbarium specimens housed in the herbarium provides visitors with a unique and easy way to visit Butler University's Friesner Herbarium, in Indianapolis, IN.

Native Plants of Indiana

A website by the Indiana Wildlife Federation; each plant category presents a list of species, that a link to images and descriptions from the Lady Bird Johnson Wildflower Center.

Iowa

Dendrology at Iowa State University

An easy-to-navigate website on North American trees by Donald Farrar, Iowa State University. Each species page features clear scanned images of diagnostic traits, distribution map, and usual topographic position.

Grasses of Iowa

A website from Iowa State University, with great habit photos, scanned images, and pen & ink illustrations of the diagnostic features of prairie grasses. Access species from the list of common or scientific names.

Kansas

Kansas Wildflowers and Grasses

A very impressive website on the flora of Kansas by Mike Haddock that provides access to images and species descriptions, organized by scientific name, colour, or common name. The following main plant groups are included in the website:

Note: See the Index of Scientific Names to directly access the plant species.

Kentucky

Kentucky Native Plant Society

This website links to several other websites on the wildflowers of Kentucky, including the Native Plant Gallery.

Kentucky Wildflowers

An excellent collection of wildflower and garden flower photographs that you'll enjoy viewing. Images are organized according to flowering time or flower colour.

Massachusetts

GoBotany

If you know nothing about plant identification and want to start from scratch, this is the website to use. But if you're familiar with plant names, it's much easier to use the "Search" dialogue box at the top of the homepage to find a plant. Terminology used is also very basic, best suited for amateur botanist, but the images are a great help in confirming a plant ID. A website from the New England Wildflower Society.

Harvard University Herbaria (HUH)

The combined herbaria at Harvard University house over 5 million specimens! The homepage link provided here provides access to a variety of resources indispensable to professional botanists, but also to sites of more general interest, such as the detailed botanical illustrations of Sydenham S. Edwards, from Curtis's Botanical Magazine, published from 1787-1807.

Michigan

Michigan Ferns

A very useful website with excellent digital images of ferns in Michigan. A companion website to Charles Peirce's Michigan Wildflowers. Most of the images are habit shots, which will assist in field identification. All of the species featured in this website are also found in northern Ontario.

Michigan Flora

A useful website that provides good basic information, primarily related to habitat, on native plants in Michigan. Each species pages has a distribution dot map of Michigan counties and one image. Select the 'All Images' link under each photograph to access additional images.

Michigan Wildflowers

A very useful website with excellent digital images of Michigan wildflowers by Charles and Diane Pierce, which will greatly assist in field identification. Many of the species featured in this website are also found in northern Ontario.

Upper Peninsula Tree Identification Key

An interactive website from the Michigan State University Extension, developed mainly for grade school students, but still to be appreciated by all botany students.

Minnesota

Plants of Cedar Creek Ecosystem Science Reserve

A catalogue on the plants found in the Cedar Creek Science Reserve, by Dr. John Haarstad and Barbara Delaney, University of Minnesota. See this link to an alphabetical list of plants, by scientific name, at the top of the left margin of this website.

Flora, Fauna, Earth, and Sky… The Natural History of the Northwoods

This series of websites, by Earl J.S. Rook, features a number of topics of interest to naturalists and scientist alike. Each webpage on vascular plants includes a single photo, descriptions, and ecological and ethnobotanical information on each species.

Flowering Plants in Voyageur Country

A website on the flora of the Voyageur Country region of northeastern Minnesota, with non-technical descriptions and information on plant lore; plants are organized by season of flowering and habitat.

Friends of the Wild Flower Garden

Grasses, Sedges, and Rushes of Minnesota

Some of the best images of graminoids on the net can be found in this collection of Minnesota webpages, part of the excellent Minnesota Wildflowers website.

Minnesota Wildflowers

This fabulous website on the flora of Minnesota features images by Katy Chayka and Peter M. Dziuk (some of the best on the web!), along with good descriptions and distribution maps for each species. A very useful website for botanists working in the north. This site organizes species according to several categories: wildflowers, trees, shrubs, vines, ferns and fern allies, graminoids, invasive species, and rare species of Minnesota. An extremely useful site for identification of northern species.

Minnesota Trees, Shrubs, and Vines

Part of the excellent Minnesota Wildflowers website by Katy Chayka and Peter M. Dziuk, this series of links provides access to the woody species of Minnesota.

Wetland Plants and Plant Communities of Minnesota and Wisconsin, 3rd edition (2011)

Provided in PDF format on a chapter basis, each of the 14 wetland types described in this website includes a list of plants names, followed by informative descriptions and images of these species. Written by Steve D. Eggers and Donald M. Reed.

Missouri

Missouriplants.com

This website provides spectacular digital images by Dan Tenaglia, including images of features that are key to the correct identification of these wildflower and pteridophyte species. All serious botany students should bookmark this website.

Missouri Wildflower Guide

Plants in this interesting website by Marilyn Gerrard-Hartman are arranged by flower colour or alphabetically by name. Click on the "List" button near the top of the website to access larger images and non-technical descriptions, as well as literature quote about the species. There is also a link to print out note cards of some images for personal use.

Montana

Montana Plant Life

A well-organized website with excellent images and information. Separate sections on edible, medicinal, and poisonous plants are also presented.

Nebraska

Wetland Flora Field Office Guides

While no longer available on the web, regional editions of the former USGS series of wetland plant field guides can be downloaded from this website, hosted by the USDA Natural Resources Conservation Service.

Discover Nebraska's Roadside Flowers & Grasses

The website from the Nebraska Dept. of Roads featuring wildflowers that grow along highways and roadsides has been replaced by a 6-page pamphlet, which you can download from this link.

New Jersey

Plants of the NJ Pine Barrens

A fine collection of photographs by Mike Baker from one of the most interesting habitats in New Jersey. Browse the various categories presented or select a species from this Index.

New York

Plants of the Northeastern United States

North Carolina

Plant Fact Sheets - North Carolina State University Extension

This website includes a very informative collection of Fact Sheets on a variety of horticultural topics, including herbs, ground covers, roses, etc. Click on the image thumbnail to view the full description, with larger image.

Plants and Flowers of the NC Coast Barrier Islands

An informative NCNatural Guide to North Carolina's flora of the barrier islands.

Poisonous Plants of North Carolina

This new website from the Herbarium of the Dept. of Plant and Microbial Biology, North Carolina State University, includes several links to webpages on poisonous plants. Be sure to view these in advance of requiring the information and be sure to bookmark the sites most useful to you.

Southern Appalachian Wildflowers

A great collection of absolutely stunning wildflower images by Rich Stevenson. Once you see his pictures of Oconee bells and the yellow fringed orchid, you'll want to view all of the images!

Ohio

Common Ohio Trees

A well-illustrated, excellent resource by Ohio DNR’s Division of Forestry, with images and descriptions of Ohio tree species, followed by information on key identifying features of each species.

Ohio Perennial and Biennial Weed Guide

A useful website with basic descriptions and images of many common weeds found in eastern North America, often including images of the seedling stage to help facilitate weeding. Developed by the Ohio Agricultural Research and Development Centre, Ohio State University, Wooster, OH.

Ohio University Bryophyte Page

A very useful collection of webpages on Ohio bryophytes, created by Morgan Vis and Emily Miller, Ohio University. The webpages includes descriptions and known historical uses for each species. Most of the species are also found in northern Ontario.

Weed Identification Guide - Field Weeds

A website by James Altland, from Oregon State University, on weedy species from crop fields. Each species page includes a variety of images, such as habit, foliage, flower, and stems.

Oklahoma

Noble Foundation Plant Image Gallery

A website of the Samuel Roberts Noble Foundation, which supports research in the field of agriculture, plant biology, and forage improvement. Included in the website are 4 image collections: Grasses & grasslikes, Forbs, Trees, Shrubs, and Woody Vines, and Aquatics. Species can also be accessed by common name, family, or images.

Wetland and Aquatic Plants of Oklahoma

A website by Bruce W. Hoagland, Oklahoma Biological Survey, with distribution maps and clickable thumbnail images of each species.

Oregon

Common Trees of the Pacific Northwest

A very useful website on trees of North America's northwest coast. Linked to the list of genera is a description of each genus, plus a list of local native species. The descriptions are brief, non-technical, and include several images and a range map for each species.

Field Weeds

Weed Management in Nursery Crops, a website by James Altland, Oregon State University, includes this guide to weeds of cultivated fields. Each species page includes a variety of images, such as habit, foliage, flower, and stems.

Landscape Plants - Oregon State University

An updated website of images of cultivated trees and shrubs, plus images of many herbaceous ornamentals. Images of plant habit, flower, fruit, leaf, bark, and twig details are provided, as well as descriptions and basic horticultural information. A great reference for gardeners.

Lichenland

An interesting and very useful site on lichens compiled by researchers at Oregon State University. Illustrated interactive keys help to teach about the unique characters of lichens, which are formed by a symbiotic association between two unrelated species - one a fungus, the other either an alga or a cyanobacterium.

Oregon Flora Image Project

Another fabulous website, featuring numerous images of plants from Oregon State, by brothers, Dr. Gerald Carr and Dr. Robert Carr. Without a doubt, the best plant photographs available on the web! This website is a companion to the Oregon Flora Project of Oregon State University.

Oregon Flora Project

The Oregon Flora Project, developed by Oregon State University, Corvallis, OR, includes the latest Oregon checklist, a guide to rare plants of Oregon, and an atlas to Oregon plants.

Photo Album of Western Plants and Wildflowers

A website of western wildflower image by Christopher Christie; not too many of these species are found in northern Ontario, but still worth a look.

Pennsylvania

Hunt Institute for Botanical Documentation

This website includes a Catalogue of Botanical Art, of which some illustrations are in the public domain and can be downloaded from the web.

MyWildflowers.com

This well-organized attractive website, by Deb Thompson, provides thumbnails of species that link to pages with full-size images and basic descriptive information. Browse the Species List or select one of the other options provided on the homepage.

South Carolina

South Carolina Plant Atlas

Primarily an atlas of county-based distribution maps, but often providing links to images of the species. Access to the species is alphabetical by scientific name. A website from A.C. Moore Herbarium, University of South Carolina. From the left column of the website, be sure the check out other webpages on botanical topics such as poison ivy and mystery plant images.

Tennessee

Bioimages (US)

Identifying Invasive Plants of Middle Tennessee

A webpage on a few species considered to be invasive in middle Tennessee, and some of which also occur in northern Ontario. This webpage is part of the Bioimages website, hosted by Vanderbilt Univ.

Tennessee Wildflowers

This unique website feature images of wildflowers from regional hikes, organized according to blooming time, which can assist visitors to Tennessee who wish to find or photograph a particular flowering species.

Wildflowers of Middle Tennessee

A website with good images and location information for each image. One of the Bioimages websites, hosted by Vanderbilt University, Nashville.

Woody Plants of the Southeastern U.S.

A website from BioImages, hosted by Vanderbilt University, Nashville, TN. Dendrology students will find the comparisons of oak, hickory, and maple species particularly useful.

Texas

CyberSedge

The best website on Carex species, featuring Harry Charles Creutzburg's excellent pen & ink illustrations from Kenneth Kent Mackenzie's classic 1940 reference, North American Cariceae. Click on the individual plant, perigynium, achene, spike, ligule, or scale drawings for an enlarged view. Compiled by Texas A&M University's Bioinformatics Working Group.

Image Archive of Central Texas Plants

This image collection is part of the course website for the Native Plants of Central Texas course (Bio 406D) at the University of Texas at Austin. Very nice images and notes on diagnostic traits are included.

Lady Bird Johnson Wildflower Center – Native Plants Database

Native Trees of Texas

This website includes basic descriptions and images of the native trees and shrubs of Texas.

Texas Grass Images

A collection of excellent illustrations of grass species, including details of the spikelets and other features, from the Bioinformatics Working Group, Texas A&M University. As with CyberSedge, click on each small image to view a larger version.

Trees of Texas

A very attractive and useful website with beautiful paintings of each tree species, including details of the leaves and flowers or fruit. Information is provided on how to collect leaves and identify the tree species. A glossary of terms and information on Texas Ecoregions is also included.

Vascular Plant Image Gallery - Digital Flora of Texas

A comprehensive collection of vascular plant images, mainly from the Southwest, arranged alphabetically by family. Compiled by the Bioinformatics Group, Texas A & M University, from many online sources.

Wildflowers in Bloom

A website created by Dan Lineberger and Jerry Parsons, Horticulture Program, Texas Cooperative Extension Service, featuring common wildflowers of Texas.

Virginia

Virginia Tech Dendrology Factsheets (vTree)

The factsheets page of the Dendrology website from Virginia Polytechnic Institute and State University, Blacksburg, VA, links to identification sheets on over 800 species of trees. Access the species lists through the links to Angiosperm Families or Gymnosperm Families. Very useful for all botany students.

Washington

Flora of Eastern Washington and Adjacent Idaho

In The Garden of Paghat the Ratgirl

An unusual name for an unusually delightful website that features excellent descriptions of cultivated species and many cultivars, photographed in their garden settings in Washington State. The home page provides a list of plant categories to browse, or access the species by scientific name.

Marion Ownbey Herbarium - Washington State University

This website includes links to various local flora checklists, including Kamiak Butte, Moscow Mountain, Smoot Hill, and Rose Creek, as well as an herbarium specimen database on 350,000 specimens.

Native Orchids of Washington State

A website of excellent images and descriptions of the 34 species (plus varieties) of orchids native to Washington State.

Washington Native Gallery Index

A collection of images and habitat information from the Washington State Native Plant Society.

Washington State Noxious Weed Control Board

The noxious weed species list heading in this website from Washington State links to excellent descriptive pages with images of many weed species also found in Canada.

WTU Image Collection: Plants of Washington

A fabulous website from the Burke Museum of Natural History and Culture, University of Washington-Seattle, with many excellent images, synonymy, and distribution of the plants of Washington State.

Wisconsin

Flora of Wisconsin

This excellent new resource from the University of Wisconsin in Madison, WI, provides links to descriptions and images of all species in Wisconsin, as well as links at the top of the website to other projects being conducted by University researchers. Browse the Flora of Wisconsin Image Collection by this species list. Botanists may be familiar with their previous website, which provides easy access to herbarium records at the Madison State Herbarium.

Gymnosperms of Northeastern Wisconsin

A great website with an interactive key that includes all of our northern Ontario conifers.

Cofrin Centre for Biodiversity

The Gary A. Fewless Herbarium at the University of Wisconsin-Green Bay, was named in honour of its emeritus curator, Gary Fewless, who compiled an impressive set of excellent websites on most aspects of botany in Wisconsin. Each webpages has the same easy-to-use design, with thumbnails of digital images and scans showing traits such as bark, buds, leaves, flowers, fruits, etc. Clicking on the thumbnails will link you to a larger version of the images. Not all pages contain descriptions yet, but those that do are written in a not-too-technical manner and include information on the range of the species. Access the various websites from the links about half-way down the homepage.

Invasive Plants of Northeastern Wisconsin

Another great collection of webpages from Gary Fewless, Cofrin Center for Biodiversity at the University of Wisconsin-Green Bay. Text includes descriptions and information on the history of the introduction of these species into Wisconsin. Digital image feature habitats and diagnostic traits.

Online Virtual Flora of Wisconsin

In the search dialogue box of homepage, type in a scientific or common name to access a brief description, plant images, and images of herbarium sheets for each Wisconsin species. You can also select species from this list of Wisconsin plant families.

Plant Teaching Collection

A collections of images from the University of Wisconsin-Madison; useful for students in General Biology, Dendrology, Mycology, Plant Diversity, and Plant Ecology courses.

Pteridophytes of Wisconsin: Ferns & Fern Allies

An extremely well-constructed website, by Gary Fewless, of the Cofrin Center for Biodiversity, University of Wisconsin-Green Bay, which includes an interactive key to Ferns and Fern Allies of Wisconsin and an excellent interactive glossary to terms relating to ferns and fern allies.

Trees and Shrubs of Wisconsin

A great resources for students. These two websites, by Gary Fewless of the Cofrin Center for Biodiversity, University of Wisconsin-Green Bay, include an interactive glossary of terms used in tree and shrub identification, and an interactive key to the trees of Wisconsin.

Wisconsin Lichens

A website from the Wisconsin State Herbarium, University of Wisconsin-Madison with nomenclatural information and distributions of the lichen species of Wisconsin. Access the species from the List of Genera.

Wisconsin Wetland Plants, Goldenrods, and Asters

Actually, three distinct websites by Gary Fewless, Cofrin Center for Biodiversity, University of Wisconsin-Green Bay. These excellent websites, constructed in the same easy-to-use format of his other websites (see Wisconsin websites), include descriptions, digital camera and scanned images of the plants, and diagnostic features.