You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Michigan Remove constraint Place: Michigan Place North America Remove constraint Place: North America Place University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor. Between ponds. Remove constraint Place: University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi. northeast of Ann Arbor. Between ponds. Place Washtenaw Remove constraint Place: Washtenaw Topic Fabaceae Remove constraint Topic: Fabaceae Topic Medicago Remove constraint Topic: Medicago