PBS
Pbs Online: Journey Into Amazonia's Powerful Plants
This site from PBS Online explores the useful plants of the Amazon valley from the rain forest Amazonia. Content highlights a variety of selected plants: Astrocaryum aculeatum Meyer, Bactris gasipaes, Hevea brasiliensis, Oenocarpus...
Other
Raintree: Tropical Plant Database
This site provides a detailed database of plants found in the tropical rainforest. Content focuses on the medicinal uses of these plants.
Center for Educational Technologies
Earth Floor: Biomes: Tropical Rainforest Plants
Site offers information about tropical rainforest plants and plant adaptations. Offers links to other biomes as well.