You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Along a 50 ft. stretch of a footpath beside the River Rouge at the SW end of the ice-skating area north of Joy Rd. Remove constraint Place: Along a 50 ft. stretch of a footpath beside the River Rouge at the SW end of the ice-skating area north of Joy Rd. Place Michigan Remove constraint Place: Michigan Place North America Remove constraint Place: North America Place USA Remove constraint Place: USA Place Wayne Remove constraint Place: Wayne Topic Magnoliopsida Remove constraint Topic: Magnoliopsida Topic Polygonaceae Remove constraint Topic: Polygonaceae