You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place University of Michigan Botanical Gardens. Dixboro Site, 4.5 mi. northeast of Ann Arbor, West central edge of Osgood Woods at the edge of a white oak stand. Remove constraint Place: University of Michigan Botanical Gardens. Dixboro Site, 4.5 mi. northeast of Ann Arbor, West central edge of Osgood Woods at the edge of a white oak stand. Topic Podophyllum Remove constraint Topic: Podophyllum