Herbaria of Chicago and the Upper Midwest

Illinois

• Chicago Botanic Garden Herbarium
• The Field Museum Herbarium
• The Morton Arboretum Herbarium -- Integrated Plants Database
• Illinois Natural History Survey (INHS) Herbarium Collection
• Illinois State Museum Collections

Indiana

• Friesner Herbarium, Butler University
• Indiana University Herbarium
• Purdue University Herbarium

Iowa

• Grinnell College Herbarium
• Iowa State University Herbarium
• University of Iowa Herbarium (herbarium was transferred to Iowa State)

Michigan

• Michigan State University Herbarium
• University of Michigan Herbarium

Minnesota

• University of Minnesota Herbarium, J. F. Bell Museum of Natural History

Wisconsin

• Wisconsin State Herbarium, University of Wisconsin - Madison
• Robert W. Freckmann Herbarium, University of Wisconsin - Stevens Point
• Herbarium, Cofrin Center for Biodiversity, University of Wisconsin - Green Bay