You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Canada Remove constraint Place: Canada Place Essex Remove constraint Place: Essex Place Gosfield South Tp, Lot 6, Con III, 3 km Northwest of Ruthven, "Ruthven Rocky Woods". Remove constraint Place: Gosfield South Tp, Lot 6, Con III, 3 km Northwest of Ruthven, "Ruthven Rocky Woods". Place North America Remove constraint Place: North America Topic Carex Remove constraint Topic: Carex Topic Magnoliopsida Remove constraint Topic: Magnoliopsida Topic Plantae Remove constraint Topic: Plantae