You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Chihuahua Remove constraint Place: Chihuahua Place La Reforma; Sierra Madre Occidental; 15.6 mi NE of El Vergel on Hwy 24 Remove constraint Place: La Reforma; Sierra Madre Occidental; 15.6 mi NE of El Vergel on Hwy 24 Place Mexico Remove constraint Place: Mexico Topic Muhlenbergia Remove constraint Topic: Muhlenbergia Topic Plantae Remove constraint Topic: Plantae