CRI is a 501c3 Non-Profit Organization






Be sure to keep an eye out under “Educational Offerings” for the next field seminar series being conducted in 2018 by Dr. Wilhelm on “Woodlands of the Chicago Region.”

"Flora of the Chicago Region is magnificent—a major contribution to biodiversity studies. I’m very grateful for the copy you sent—and already going over it, with deep pleasure."

Edward Wilson


Flora of the Chicago Region:
A Floristic and Ecological Synthesis

is now available for purchase at It is also available at the Morton Aboretum bookstore. the book retails for $125 plus postage.

Cover photo of Bluff Springs Fen is courtesy of Mike MacDonald.

E.O.Wilson's comment about our book: