You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Arizona Remove constraint Place: Arizona Place North America Remove constraint Place: North America Place Sabino Canyon, Santa Catalina Mts., Tucson. Remove constraint Place: Sabino Canyon, Santa Catalina Mts., Tucson. Topic Euphorbiaceae Remove constraint Topic: Euphorbiaceae Topic Magnoliopsida Remove constraint Topic: Magnoliopsida