You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Alcona Remove constraint Place: Alcona Place at E. end of Black Riv. Rd. in village of Black River on L. Huron S. of Alpena. Alcona Twp. 200 ft. E. of St. Gabriels Catholic Church Remove constraint Place: at E. end of Black Riv. Rd. in village of Black River on L. Huron S. of Alpena. Alcona Twp. 200 ft. E. of St. Gabriels Catholic Church Topic Plantae Remove constraint Topic: Plantae Topic Poaceae Remove constraint Topic: Poaceae Topic Poales Remove constraint Topic: Poales