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HORTICULTURAL DATABASES, FLORAS & HERBARIA General Information and photo database sites.
General Information Databases
American Rhododendron Society
Center for Aquatic and Invasive Plants
DELTA Database
Edible Landscaping
Every Rose
Flowerbase
Forest Tree Genome Database
Gymnosperm Database
Harvard University Herbaria
Marion Ownbey Herbarium, Washington State University
National Plants Database
New York Botanical Garden
Oregon State University Herbarium- Vascular Plants
Plant Viruses Online
Plants Toxic to Animals
Poisonous Plants
Range Science Herbarium, New Mexico State University
Royal Ontario Museum Herbaria, Canada
S.M.Tracy Herbarium, Texas A&M University
Threatened Plants of the World
Tropical Plants Database
UCMP Taxon Lift
University of Connecticut Plant Database
USDA Plants Database
World Species List - Animals, Microbes and Plants
World Wide Flowering Plant Family Identification
Regional Database Sites
California's Coastal Plant Communities
Common Trees of Pennsylvania
Hawaiian Flowering Plant Checklist Database
Invasive Plants of the Northwest
Midwestern Wetland Flora
Native Flowers of the North Dakota Grasslands
Native Plants of Hawaii
North Dakota Vegetation
Pennsylvania Flora Project
Vascular Plants of New England
Western Wetland Flora
Wildflowers of the Southern Appalachians
Wyoming Rare Plant Field Guide
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