Bøker av Norman C. Fassett

Covers a region from Minnesota to Missouri and eastward to the Gulf of St Lawrence and Virginia. Originally published in 1940, this manual includes 219 line drawings and seven photographs of aquatic plants, a glossary, an appendix of nomenclature revisions, an appendix on the use of aquatic plants by various fauna, and an index.

This study of grasses, whether native or non-native, growing in the wild in Wisconsin, includes descriptions, techniques, maps, and illustrations, for locating and identifying these grasses.