Polylepis's a genus of trees and shrubs restricted to the Andes of South America. The genus belongs to the Rosaceae family and to the tribe Sanguisorbeae. It's wind-pollinated and can be recognized by its pinnate leaves and a multi-layered, papery bark, the latter feature also prompting its scientific name, a combination of Greek and Latin meaning "many-scales". Distribution The Polylepis species frequently grows at or above the natural tree line in the Andes. Polylepis tarapacana's especially… (More on Polylepis)