Plant Database | Plant Identification Guide | Botanical Identification Key | Horticulture Plant Identification | Plant Classification | Plants To Grow Plants Database by Paul S. Drobot
Great New Garden Plant Picking Resource (and it's free!) – Successful Garden & Lifestyle Design
plant finder | Completegarden's Weblog
The International Waterlily & Water Gardening Society - The Database committee of The International Waterlily & Water Gardening Society has worked hard over the past year to develop a NEW Aquatic Plant
National Tropical Botanical Garden | Tropical Plant Database
USDA Plants Database
Plants Database - Garden.org
Practical Plants Database - The Permaculture Research Institute
Plant Database - Creative Commons
Beautify Your Surroundings - Grow Native!
Interlinking Databases for Plant Research - bplant.org
Native Plant Database – Native Plant Society of Texas
Geodesign in a Desert Garden
Online Plant Databases (Canada & United States) | Empress of Dirt
National Tropical Botanical Garden | Tropical Plant Database
Database helps you find trees, shrubs that work for your garden in WNY - Buffalo-NiagaraGardening.com