Variety of informative, up-to-date, plant-related links from the Univ. of Oklahoma.

an index to botanical information available on the Internet. It consists of two parts, an alphabetical directory and a categorical directory.

links to many interesting sites in lower plants, e.g. algae, bryophytes and fungi.

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.

provides access to information about all 8375 currently recognized plants in California, including more than 670,000 plant observations and 20,000 photographs.

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.

A list of links related to various aspects of botany.

Collection of scholarly and research links for plant biology.

Database of plant names, information on them, and the sources of information.