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 Isle Royale National Park; Washington Harbor, Windigo Mine trail Remove constraint Place: Isle Royale National Park; Washington Harbor, Windigo Mine trail Place Keweenaw Remove constraint Place: Keweenaw Topic Equisetum Remove constraint Topic: Equisetum