You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place About 13 km NE of Hillsdale. E. side of Willits Lake. Remove constraint Place: About 13 km NE of Hillsdale. E. side of Willits Lake. Place Hillsdale Remove constraint Place: Hillsdale Topic Cyperaceae Remove constraint Topic: Cyperaceae Topic Plantae Remove constraint Topic: Plantae Topic Poales Remove constraint Topic: Poales