You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Mexico Remove constraint Place: Mexico Place Tamaulipas Remove constraint Place: Tamaulipas Place along Mex. 180, 19 mi. n of Aldama Remove constraint Place: along Mex. 180, 19 mi. n of Aldama Topic Cnidoscolus Remove constraint Topic: Cnidoscolus