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 Mexico Remove constraint Place: Mexico Place North America Remove constraint Place: North America Place San Luis Potosí Remove constraint Place: San Luis Potosí Place Tamasopo Canyon Remove constraint Place: Tamasopo Canyon Topic Euphorbia Remove constraint Topic: Euphorbia