You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Superior Twp. University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; along south side of narrow strip of elm woods that justs eastward toward gate 8 Remove constraint Place: Superior Twp. University of Michigan Botanical Gardens, Dixboro Site. 4.5 miles northeast of Ann Arbor; along south side of narrow strip of elm woods that justs eastward toward gate 8 Topic Symphyotrichum Remove constraint Topic: Symphyotrichum