the U. of Florida presents a large collection of links sorted into categories designed to be extremely helpful to anyone doing research or just curious about Aquatic, Wetland and Invasive plants

[The Krib] Aquatic Plants

including some good material on aquarium and aquatic plant related articles and subjects

Information on all aspects of freshwater live plantkeeping. Also includes detailed information on lighting, algae and snails which may be useful to all aquarists

A basic Introduction to the physiology and ecology of aquatic plants

Almost an FAQ on how to use plants in the aquarium and get the best from them.

Help site by Torsten Tiedtke.