You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Benson Swamp. About .1 mile north of Conrail trach & .2 mile west of Benson Swamp Rd. Freehold Twp. Remove constraint Place: Benson Swamp. About .1 mile north of Conrail trach & .2 mile west of Benson Swamp Rd. Freehold Twp. Topic Magnoliopsida Remove constraint Topic: Magnoliopsida