You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place 0.4 mi. E. of Elm Rd., ±0.3 mi. S. of Union Rd., along old RR track trail, next to cultivated field. About 25 km SE of Hillsdale. Remove constraint Place: 0.4 mi. E. of Elm Rd., ±0.3 mi. S. of Union Rd., along old RR track trail, next to cultivated field. About 25 km SE of Hillsdale. Topic Caryophyllaceae Remove constraint Topic: Caryophyllaceae