You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Arizona Remove constraint Place: Arizona Place Gila Remove constraint Place: Gila Place Rte. 288, ca 25 air miles south of Young, edge of Anch Experimental Forest. Remove constraint Place: Rte. 288, ca 25 air miles south of Young, edge of Anch Experimental Forest. Place USA Remove constraint Place: USA Topic Euphorbia Remove constraint Topic: Euphorbia Topic Malpighiales Remove constraint Topic: Malpighiales