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 Michigan Remove constraint Place: Michigan Place Washtenaw Remove constraint Place: Washtenaw Topic Ambrosia Remove constraint Topic: Ambrosia Topic Asteraceae Remove constraint Topic: Asteraceae Topic Asterales Remove constraint Topic: Asterales