You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place "The Island," along the Huron River, Ann Arbor. Remove constraint Place: "The Island," along the Huron River, Ann Arbor. Place North America Remove constraint Place: North America Topic Ambrosia Remove constraint Topic: Ambrosia Topic Magnoliopsida Remove constraint Topic: Magnoliopsida