» CalFlora Database    provides access to information about all 8375 currently recognized plants in California, including more than 670,000 plant observations and 20,000 photographs.    http://www.calflora.org/

» Dr. Scott Russell's Botanical Links    Variety of informative, up-to-date, plant-related links from the Univ. of Oklahoma.    http://www.ou.edu/cas/botany-micro/bot-linx/

» Internet Directory for Botany    an index to botanical information available on the Internet. It consists of two parts, an alphabetical directory and a categorical directory.    http://www.botany.net/IDB/

» Internet Directory for Botany: Algae, Bryophytes, Fungi    links to many interesting sites in lower plants, e.g. algae, bryophytes and fungi.    http://www.helsinki.fi/kmus/botcryp.html

» MBG: W3TROPICOS    Database of plant names, information on them, and the sources of information.    http://mobot.mobot.org/W3T/Search/vast.html

» Plants For a Future    A resource centre for rare and unusual plants, particularly those which have edible, medicinal or other uses. The site contains an online database of over 7000 plants.    http://www.comp.leeds.ac.uk/pfaf/index.html

» Schoolhouse: Science: Botany Resources    A list of links related to various aspects of botany.    http://teacherpathfinder.org/School/Subjects/Science/botany.html

» USDA PLANTS Database    Plant names, photos, fact sheets, and information on culturally significant plants, noxious and invasive plants, and threatened and endangered plants, with links to thousands of plant-related sites and software tools.    http://plants.usda.gov/

» World-Wide Web Virtual Library: Botany    Collection of scholarly and research links for plant biology.    http://www.ou.edu/cas/botany-micro/www-vl/