During the summers of 1933 and 1934 about 750 species of flowering plants, ferns, and mosses were collected in Winneshiek and Allamakee Counties. They have been deposited in the Herbarium of Iowa State College. The rich flora is represented by remnants of the forest and prairie which once covered the region. Many weed and exotic plants have been introduced, and a number of species reported by early collectors appear to have become extinct. Many others are becoming rare.
Proceedings of the Iowa Academy of Science
©1935 Iowa Academy of Science, Inc.
Tolstead, W. L.
"A Flora of Winneshiek and Allamakee Counties,"
Proceedings of the Iowa Academy of Science, 42(1), 91-91.
Available at: https://scholarworks.uni.edu/pias/vol42/iss1/26