In her paper on Violaceae of Iowa Newbro (1936) included Viola hirsutula Brainerd. This is a small violet which grows characteristically in mixed angiosperm forests of the Appalachian region from Connecticut to Georgia. A number of Iowa specimens labeled V. hirsutula in the State University herbarium are V. nephrophylla Greene, a species which, according to Brainerd (1921), occurs from Quebec and New England westward to the Rocky Mountain region where it has a very wide range. This species was originally described from Colorado. In Iowa it seems most characteristic of our hillside bogs or fens. We have at the University of Iowa specimens from Cerro Gordo and Dickinson counties. It should be found in other counties from the northern part of the state. Apparently it has never been reported from Iowa. Our Iowa specimens have been compared with New England collections of V. nephrophylla which were kindly loaned by the Gray Herbarium.
Proceedings of the Iowa Academy of Science
©1942 Iowa Academy of Science, Inc.
Anderson, W. A.
"Notes on Iowa Flora,"
Proceedings of the Iowa Academy of Science, 49(1), 205-205.
Available at: https://scholarworks.uni.edu/pias/vol49/iss1/26