Violets of the Chicago Region
"Stemless Blue" Violets
Trillium (The Trillium Genus)
Orchids of the Chicago Region
A key to bryophytes - distinguishing between liverworts, hornworts, and mosses
Asclepias of the Chicago Region
Shrubs of the Chicago Region
Ceanothus, Physocarpus, and Ribes (The New Jersey Tea, Ninebark, and Currant/Gooseberry genera)
Anacardiaceae (The Cashew Family)
Araceae (The Arum Family)
Eupatorium (The Boneset Genus)
Onagraceae (The Evening Primrose Family)