You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Gratiot Lake Remove constraint Place: Gratiot Lake Place Keweenaw Remove constraint Place: Keweenaw Topic Alismatales Remove constraint Topic: Alismatales Topic Potamogetonaceae Remove constraint Topic: Potamogetonaceae Type still image Remove constraint Type: still image