You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Colonia Obrera (Ejido Benito Juárez); Tuxtepec; Chiltepec Remove constraint Place: Colonia Obrera (Ejido Benito Juárez); Tuxtepec; Chiltepec Topic Cnidoscolus Remove constraint Topic: Cnidoscolus