You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Mackinac State Forest, Rock River, ca 0.5 mi from US 2 off Big Knob Rd Remove constraint Place: Mackinac State Forest, Rock River, ca 0.5 mi from US 2 off Big Knob Rd Topic Plantae Remove constraint Topic: Plantae