You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Dexter Twp., Sec. 4-5 Pinckney Recreation Area near Crooked Lake. Remove constraint Place: Dexter Twp., Sec. 4-5 Pinckney Recreation Area near Crooked Lake. Place USA Remove constraint Place: USA Place Washtenaw Remove constraint Place: Washtenaw Topic Asteraceae Remove constraint Topic: Asteraceae Topic Erigeron Remove constraint Topic: Erigeron