You searched for: Place Superior Twp. University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; just west of auto bridge over Fleming Creek [ Remove constraint Place: Superior Twp. University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; just west of auto bridge over Fleming Creek [ Topic Erigeron Remove constraint Topic: Erigeron