Arnold Arboretum Features selected plants at the Arboretum, collections management, on-site projects, a plant-information hotline, and a detailed table listing bloom times for dozens of plants; guidelines for adjusting dates for localities beyond New England are
Plants-In-Motion Collection of time-lapse photography that shows the movements of plants The videos show plant growth phenomena, including germination, circadian responses, phototropism.
PlantZAfrica Information about plants native to the countries of southern Africa. Includes images, descriptions, and growing information for more than 22,000 plant species.
Washington Native Plant Society Includes photographs and descriptions of plants native to specific Washington regions, information on invasive species and endangered plants, articles on native plants, and links to ethnobotany, gardening, and seed and plant sources, information about
Wild Food Information about foraging for edible and medicinal wild plants. Includes recipes and information about New York area ecology tours.