||Midwestern wetland flora : field office guide to plant species /
|| USDA-Soil Conservation Service, Midwest National Technical Center,
Wetland plants--United States ;
Freshwater plants--United States ;
||Region 5 Library/Chicago,IL
||1 volume (various pagings) : illustrations ; 28 cm
"Three hundred species of vascular plants were chosen for inclusion in this guide ... On the back of each page is one or more colored photograph(s) ... of the species in the United States, followed by a black and white illustration of the entire plant.