
author
b. 1931
A leading authority on the flora of Illinois, this botanist and writer spent decades helping readers, students, and scientists better understand North American plants. His books and field guides are known for turning careful scholarship into practical, usable knowledge.

by Robert H. Mohlenbrock
Born in Murphysboro, Illinois, in 1931, Robert H. Mohlenbrock built a long career as an American botanist, teacher, and author. He became especially well known for his deep knowledge of Illinois plant life, with work that centered on floristics, plant taxonomy, endangered species, and wetland flora.
Mohlenbrock earned both his bachelor's and master's degrees at Southern Illinois University Carbondale and later taught botany there for thirty-four years. After retiring from the university, he continued his work as a senior scientist with Biotic Consultants and taught wetland identification classes around the country.
He was also a remarkably prolific writer, producing more than seventy books and contributing a long-running monthly column to Natural History magazine. His lifelong work with the plants of Illinois helped establish him as one of the state's most respected botanical voices.