 Better details are available for the more extensively studied southern population.The dominant bunchgrass species are "Festuca amplissima", Peruvian feather grass ("Stipa ichu"), a muhly grass ("Muhlenbergia affinis"), and "Muhlenbergia macroura".Small woods of Montezuma Pine ("Pinus montezumae") and (probably) Lumholtz' Pine ("P. lumholtzii") occur on elevated terrain.