You searched for: Place North America Remove constraint Place: North America Place USA Remove constraint Place: USA Place University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; Clement's Woods Remove constraint Place: University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; Clement's Woods Place Washtenaw Remove constraint Place: Washtenaw Topic Asterales Remove constraint Topic: Asterales Topic Cirsium Remove constraint Topic: Cirsium