You searched for: Place University of Michigan Botanical Gardens. Dixboro Site, 4.5 mi. northeast of Ann Arbor, Southwest corner of Osgood Woods at entrance to garden trails. Remove constraint Place: University of Michigan Botanical Gardens. Dixboro Site, 4.5 mi. northeast of Ann Arbor, Southwest corner of Osgood Woods at entrance to garden trails. Place Washtenaw Remove constraint Place: Washtenaw Topic Lamiales Remove constraint Topic: Lamiales Topic Plantago Remove constraint Topic: Plantago