You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Alabama Remove constraint Place: Alabama Place Tuscaloosa Remove constraint Place: Tuscaloosa Place USA Remove constraint Place: USA Place Vicinity of Holt Lock & Dam, about 4 miles north of Peterson, south of Black Warrior River. Remove constraint Place: Vicinity of Holt Lock & Dam, about 4 miles north of Peterson, south of Black Warrior River. Topic Magnoliopsida Remove constraint Topic: Magnoliopsida