You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place North America Remove constraint Place: North America Place Place near G.T. freight yards above Tunnel Station, near city of Port Huron. Remove constraint Place: Place near G.T. freight yards above Tunnel Station, near city of Port Huron. Topic Cyperaceae Remove constraint Topic: Cyperaceae Topic Eleocharis Remove constraint Topic: Eleocharis