You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Highway to San Luis Potosí, 42 km. west of Rio Verde Remove constraint Place: Highway to San Luis Potosí, 42 km. west of Rio Verde Place San Luis Potosí Remove constraint Place: San Luis Potosí Topic Cnidoscolus Remove constraint Topic: Cnidoscolus Topic Euphorbiaceae Remove constraint Topic: Euphorbiaceae