Iowa may be taken as a good example of a midtemperate climate although the northern part approaches a cold temperate condition. This, too, is indicated by the flora, as northeast Iowa has a much larger number of species characteristic of the northern regions than southern Iowa. Iowa is a land of comparatively little relief, ranging from a little less than 500 ft. at Keokuk to a little more than 1600 ft. at some places on the northern border.
Proceedings of the Iowa Academy of Science
©1949 Iowa Academy of Science, Inc.
Anderson, J. P.
"A Comparison of the Flora of Iowa With That of Alaska and Yukon,"
Proceedings of the Iowa Academy of Science, 56(1), 101-105.
Available at: https://scholarworks.uni.edu/pias/vol56/iss1/13