Gardening information that lets you shop for plants, view pictures of products and has an online garden design tool.
Plant Information and Botanical Sites
Berkeley Digital Library Project developing technologies for intelligent access to massive, distributed collections of photographs, satellite images, maps, full text documents, and "multivalent" documents.
Brousseau California Flora Pictures has over 11,000 pictures of California wild flowers and other plants.
CalFlora provides geographic and ecological distribution of California plants including pictures and maps.
Flowering Plants and Ferns of Cornwall and the Isles of Scilly
Raintree Tropical Plant Database provides information about medicinal plants and their usage.
Santa Monica Botanic Garden features 1,000+ rare and indigenous California plants. Has classes and a garden shop.
Poisonous Plant Databases
Poisonous Plants of North Carolina provides information and some pictures for easier identification.
Florida's Poisonous Plants includes pictures and a poison control phone number.