You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Canada Remove constraint Place: Canada Place Dunwich Township, Knowles Wildlife Preserve, Dunwich Swamp, 4.5 km SW of Dutton Post Office Remove constraint Place: Dunwich Township, Knowles Wildlife Preserve, Dunwich Swamp, 4.5 km SW of Dutton Post Office Topic Schoenoplectus Remove constraint Topic: Schoenoplectus