You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place NW of Rich Mt. lookout tower at AR Hwy 88 & Ouachita Trail crossing. Remove constraint Place: NW of Rich Mt. lookout tower at AR Hwy 88 & Ouachita Trail crossing. Place Polk Remove constraint Place: Polk Topic Carex Remove constraint Topic: Carex Topic Cyperaceae Remove constraint Topic: Cyperaceae