Dipsacus has not been previously reported in Iowa. D. laciniatus is established in a cemetery, apparently as the result of using the dried inflorescences for ornament.
Proceedings of the Iowa Academy of Science
©1963 Iowa Academy of Science, Inc.
Pohl, Richard W. and Sylwester, E. P.
"Dipsacus in lowa,"
Proceedings of the Iowa Academy of Science, 70(1), 53-54.
Available at: https://scholarworks.uni.edu/pias/vol70/iss1/10