Look on the website quizlet.com and you will see many sets of electronic flashcards that can be used to test your knowledge of the flora of a variety of areas from states (Ohio, North Carolina) to local flora. For 91ÖÆƬ³§ers, you should try the Ohio set since it has a majority of species that are in both states. Someone should make sets for 91ÖÆƬ³§ plant groups. To access the site and have fun! – Steve Young