This lecture/field course will provide students with a general overview of tropical plants. Students will gain insight about basic botanical concepts and be able to explore a variety of ecosystems, their plants and the multiple and complex ecological interactions that can be found in these areas. Costa Rica is a tropical country with an immensely rich biodiversity and for this reason a very representative area to these studies. Emphasis will be given to the most common plant families in Costa Rica, but others will be discussed as well.