Subalpine Larix decidua, Larix decidua-Pinus cembra, Larix decidua-mountain pine, Pinus cembra and Pinus cembra-mountain pine forests of the western, and mostly southwestern Alps, in regions where Pinus uncinata usually associates with Larix decidua and/or Pinus cembra. Characteristically xeric, open formations, they are best characterized by their understorey.