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 Contact UM Herbarium Remove constraint Place: Contact UM Herbarium Place Hastings Remove constraint Place: Hastings Topic Alismatales Remove constraint Topic: Alismatales Topic Plantae Remove constraint Topic: Plantae Topic Potamogeton Remove constraint Topic: Potamogeton