For four years, a record has been kept of the date of the first flower to be found growing in open ground out of doors, of our native and introduced plants of Henry County. In practice nearly all of the specimens have come from in and around Mount Pleasant. Much of the collecting has been done by students in the college classes, the number employed each year ranging from fifteen to forty.
Proceedings of the Iowa Academy of Science
©1918 Iowa Academy of Science, Inc.
Jaques, H. E.
"Some Phenological Records of Spring Flowering Plants of Henry County,"
Proceedings of the Iowa Academy of Science, 25(1), 413-415.
Available at: https://scholarworks.uni.edu/pias/vol25/iss1/35