On the lower slopes the forest is composed in great part of the long-leaved Pinus liophyllo, accompanied by deciduous oaks and a variety of other trees and shrubs.
Pulmonaria longifolia This species is known as narrow-leaved lungwort and the word longifolia means long-leaved.
Bog asphodel and the round and long-leaved sundews appear.
The forests consist of several species of evergreen and deciduous oaks, " oyamel " (Abies religiosa), the arbutus or strawberry tree, the long-leaved Pinus liophylla and the short-leaved " ocote " or Pinus montezumae and the alder, with an undergrowth of elder (Sambucus mexicana), broom and shrubby heath.