Ontario sites

• FLORA Ontario (University of Guelph)

• Dean Gugler's Wildflower Watch - for the Hamilton, Ontario (Canada) area (site used to be located here)

• Andy's Northern Ontario Wildflowers
• Wildflowers of Ontario - John Wright
• Wildflowers of Prince Edward County - Court Noxon
• John Semple's Goldenrod Illustrations
• John Semple's Goldenrod page
• John Semple's Aster page
• Ontario Natural Heritage Information Centre
  Range Maps
• Wildflower Links - Grand Valley Trail Association
• Selected Vascular Plant Families of Ontario (University of Toronto)
• Wilfred Laurier University - Dept of Biology - some pages of a database of plants
• Ojibway Nature Centre - Ojibway Prairie - Windsor
• Wildflowers of Southwestern Ontario - Don Johnston (Guelph)
• Rare Plants of Ontario - Royal Botanical Gardens, Burlington, Ont.
• Canadian Botanical Conservation Network
• Wildflowers of the Boundary Waters (this site actually based in Minnesota, but the area encompasses Ontario's Quetico region)
• Grand Valley Trail Association - Flora of Southern Ontario
• Wildflowers 4 Families

Places in Ontario to purchase wildflowers for your garden

• Nith River Native Plants
• Hortico
• Acorus Restoration; Phone: 519-586-2603
• Sweet Grass Gardens
• Richter's Herbs - a source for purchasing live herbs
• Grow Wild

US States near Ontario:
Michigan, Wisconsin, New York, Connecticut, etc
(we share many or most of the same wildflowers)

• Michigan Wildflowers (included here as Michigan and Ontario have many of the same wildflowers) - includes some links
• Asters and Goldenrods of New England
• Per's Wildflower pictures of Michigan and Ontario
• Wisconsin Vascular Plants and Lichens - Wisconsin State Herbarium - University of Wisconsin-Madison -- search the herbarium, photos, etc.
• Foraging with the "Wildman" - info on wild edibles
• Connecticut Botanical Society - Gallery of Connecticut Wildflowers
• Connecticut Botanical Society - Quick Guide to the Goldenrods of New England

Sites Elsewhere in Canada

• Internet Directory for Botany in Canada
• Celebrating Wildflowers - The "Celebrating Wildflowers" web site now features more than 90 wildflower illustrations from national parks. Botanical illustrator Donald Davidson created over 200 individual watercolors of wildflowers while serving as a VIP traveling artist over the last three years. His works also include trees, shrubs, and grasses.
• Botanical Specialists and Literature - Environment Canada (Govt website)
• University of Regina Biology Department and Herbarium
• Poisonous Plants of Nova Scotia - Museum of Nova Scotia
• Native Flora - Mount Allison University - New Brunswick (Canada)
• Canadian Poisonous Plants Information System - (Canadian Biodiversity Information Facility - Government of Canada)
• Integrated Taxonomic Information System (ITIS) - search for any plant (Canadian Biodiversity Information Facility - Government of Canada)
• Provincial Museum of Newfoundland and Labrador - a Digital Flora of Newfoundland & Labrador (EXCELLENT SITE!)
• Canadian Forest Service - rare plants of St. John Valley hardwood forest (New Brunswick)
• Perennial Gardening on the Prairies (Saskatchewan)
• Evergreen.ca Native Plants of Canada database
• Les Fleurs Sauvages d'Acadie
• Native Orchid Conservation Inc. (Manitoba); pictures of orchids
• Pollination Canada - tracks pollination of flowers

North America sites  (dealing with North America flora as a whole)

• Flora of North America - scientific site about plants of North America
• Dr. Duke’s Phytochemical and Ethnobotanical Databases - Includes five separate databases: Ecosys--plant ecological ranges, EthnobotDB--worldwide plant uses, FoodplantDB--Native American food plants, MPNADB--medicinal plants of Native America, and PhytochemDB--plant chemicals. 
• Wildflowers of North America - a page of links
  Wildflowers and weeds - Thomas J. Epel
• Gardenweb forums - Various forums (discussions) on Native plants, woodland plants, etc.
• American Violet Society; Botanical names of Violets; Key to Violets (single page); Key to Violets (multi-page)
• Violet Society Journal

United States sites

• Washington State University Native Plants - Northwestern U.S. plant identification database, and gardening tips re native plants
• Brousseau California Flora pictures - 11,000 images of California wildflowers and other plants
• Wildflowers of Western Kentucky - 115 downloadable images of wildflowers, and links to other wildflower resources
• Missouri Botanical Garden's Database
• Missouri Flora Website with many U.S. Botany Links
• Natural History at Sweet Briar College - Virginia
• Missouri Botanical Garden - Botany links
• Herb Society of America
• PLANTS national database (United States Dept of Agriculture) - Includes searchable database of plant images, distribution information and plant classification information including hierarchical listing. Plant checklists are searchable by state. Plant characteristics section includes information on physiology, growth requirements, reproduction and suitability/use.
• Ohio State University PlantFacts - Searchable database of over 20,000 pages of extension service factsheets from forty-six universities and government agencies. Search can be limited by region.
• Native American Ethnobotany Database (University of Michigan) - Coverage includes foods, drugs, dyes, fibers and other uses of 4,029 species of plants by 291 Native American groups. Each entry includes scientific and common names, Native American group, uses and source of information. Searchable by keyword. Boolean search available.
• Calflora - Includes occurrence data for over 8000 vascular plants of California. Indexed by common and scientific name. Search can be limited by county, lifeform, elevation, community and rare/native status. Image database includes over 20,000 images and is searchable by a variety of fields including name, photographer, location and plant color.
• Guide to Medicinal and Aromatic Plants - A collection of several databases from Purdue University Center for New Crops and Plant Products. Plant/Crop Descriptors includes monographs covering a variety of plant information including description, uses, and research. Type of information varies by plant. Indexed by scientific and common name. Other databases include Botanical Companies Database and Flavor, Fragrance and Essential Oils Companies Database. Also includes a Guide to Herb Varieties and a directory of sources for herb seeds and plants.
• Herbmed - Database from the Alternative Medicine Foundation with information on over 100 medicinal plants. Coverage includes evidence of activity (from case studies/clinical trials), warnings, preparations, mixtures, mechanisms for action and related links (including images).
• Vascular Plant Image Gallery - Texas A&M University, Bioinformatics Working Group. - A HUGE database of plant photos.
  Flowering Plant Gateway 
  Cronquist System - Flowering Plant Family Finder
  On-Line Botanical Data - Herbarium of Texas A&M University - Dept. of Biology
• Wildflowers of Twin Swamps Nature Preserve (Posey County, Indiana USA) - pictures and lots of info
• USDA Poisonous Plants Research Labratory 
• Cornell University Poisonous Plants Informational Database 
• University of Maryland Botanical Links - poisonous plants 
• Wisconsin State Herbarium (home page)
• Flora Online - Harvard University
• The Natural History of the North Woods - Ferns, lichens/mosses, trees & shrubs, herbaceous plants, aquatic plants, etc
• Delaware Wildflowers  -- great links page
• Christina Mild's "Rio Delta Wild" - Texas Plants
• Lady Bird Johnson Wildflower Center
• Jim Allison's Home Page - some detailed and interesting info on certain species
• Southern Appalachian Wildflowers - Violets page
• Invasive Plant Atlas of New England - an excellent resource, with photos
• Indiana Wildflowers - just a page with photos
• 2bnTheWild.com - Wildflowers of the southeastern United States - 475 species.
• Flora of the Washington-Baltimore area (Dept. of Botany, National Museum of Natural History)
• Wildflowers & Plants of North Carolina
• Barry's web site - all about carnivorous plants
• Asheville Natural - A Guide to Native Wildflowers of the Southern Appalachians; a page on the same site about Red Trilliums and their variability
• Ty Smedes Nature Photography - Iowa wildflowers

Other sites

• Plants for a Future - searchable database (U.K.)
• Moscow State University Botanical Server 
• Nordic Flowers
• Botanical Dermatology database 
• Plants for a Future Database - Includes entries for over 7000 useful plants. Coverage includes physical characteristics, habitats, edible, medicinal and other uses, cultivation and propagation information, scent, select cultivars, print references and web reference links. Searchable by scientific and common name, use, area or habitat.
• Hortiplex - Brings together data from a variety of good plant databases on over 50,000 taxa and 48,000 cultivars. Searchable by common or botanical name. Includes images.
• Prairie Nursery - although this is a business website, it has a large photo gallery of plants, along with info about each one. Photo Gallery. Select Plants by habitat - more info about each plant.
• Easy Living Wildflowers - another business website that has good info - go to the "Seed List" for info on plants.
• Henriette's Plant Pictures
• Plant Link Library - Wageningen University Plant Sciences (Netherlands)
• GLP Wildflowers - a page of links
• Goldenrod Paper by Akua Lezli Hope - how this person made paper from goldenrods
• The Garden Gate - info on medicinal properties of some plants
• scientific name synonym page
• Botanical Art (Yahoo discussion group) - Cynthia Padilla, Botanical Artist/Naturalist Illustrator
• Biopix - large number of high quality plant photos mainly from Scandinavia
• Wye Marsh - at the south end of Georgian Bay, this reknowned waterfowl sanctuary has a wildflower garden too!
• Japan Plants Index

Organizations - Plants, Wildflowers

• Field Botanists of Ontario
• Ontario Nature Network - list of Naturalist Clubs in Ontario
• Naturalist Clubs in southern Ontario:
  • Halton-North Peel Naturalist Club
  • Woodstock Field Naturalists
  • South Peel Naturalists Club
  • Hamilton Naturalists Club
  • Kitchener-Waterloo Field Naturalists Club
  • Guelph Field Naturalists
  • McIlwraith Field Naturalists of London
  • Ingersoll District Nature Club
  • St. Thomas Field Naturalist Club
  • West Elgin Nature Club
  • Huron Fringe Field Naturalists
  • Owen Sound Field Naturalists
  • Saugeen Field Naturlaists
  • Norfolk Field Naturalists
  • Niagara Falls Nature Club
  • Essex County Field Naturalists CLub
  • Ottawa Field Naturalists
• North American Native Plant Society;  featured plants;  sources of native plants
• Waterloo-Wellington Wildflower Society
• Federation of Ontario Naturalists (Ontario Nature)
• New England Wildflower Society
• The Wildflower Society of Newfoundland and Labrador
• Ojibway Nature Centre (Windsor Ont)
• Nova Scotia Wild Flora Society

Organizations - Other Outdoors and Nature

• Bruce Trail Association
• Carolinian Canada
• Canadian Wildflife Federation - "Wild About Gardening"
• Nature Conservancy Canada
• Nature Conservancy USA
• Society for Ecological Restoration International;  (Ontario Chapter)
• Upper Thames River Conservation Authority (list of natural areas)
• NHIC - Natural Areas information (Ontario MNR)
• Tallgrass Ontario
• Wild Ones - Native Plants, Natural Landscapes