Verbascum phlomoides L. does not appear on Cratty's list (1933) of the Iowa flora. Rydberg (1932) mentions Iowa as one of the states in which it is found, stating that its habitats are "waste places." Somes (1913), in his "'Notes on the Flora of Johnson County, Iowa" claims that it is, "Rare but established at Iowa City and Hill's Sidings." There are five specimens of V. phlomoides in the herbarium of the State University of Iowa. Shimek collected and identified three of them in Iowa City. He found two specimens in "Black's pasture west of City Park" on July 7, 1911. The third Iowa City specimen was gathered by Shimek in Finkbine Field on August 16, 1926. A specimen was taken and identified by the same collector on August 30, 1923, along "R. R. roadbed E. of Farmington, Lee County, Iowa." The fifth specimen of V. phlomoides was collected by Miss Howe at Fredericksburg, Chickasaw County, Iowa (date not marked on herbarium sheet).
Proceedings of the Iowa Academy of Science
©1944 Iowa Academy of Science, Inc.
Miller, Robert C.
"Verbascum phlomoides L. and V. lychnitis L. in Iowa,"
Proceedings of the Iowa Academy of Science, 51(1), 235-236.
Available at: https://scholarworks.uni.edu/pias/vol51/iss1/21