You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place North America Remove constraint Place: North America Place University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor, at north end of property Remove constraint Place: University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor, at north end of property Place Washtenaw Remove constraint Place: Washtenaw Topic Equisetales Remove constraint Topic: Equisetales Topic Polypodiopsida Remove constraint Topic: Polypodiopsida Type still image Remove constraint Type: still image