四川红杉(Larix mastersiana)又名马氏落叶松、四川落叶松,属于松科落叶松属,为国家二级重点保护植物。它的分布局限于以茂汶、汶川和理县为中心,北达平武,南至宝松的岷江流域,其垂直分布低于其它落叶松树种,如波氏落叶松(红杉)、大果红杉,常在海拔2300—3200米间形成小片纯林和混交林。这里的红杉,一般高达25—30 Larix mastersiana (also known as Larix mastersiana larch, Sichuan larch, belong to Pinaceae Larch, for the state two key protected plants. Its distribution is limited to Maowen, Wenchuan and Lixian as the center, north of Pingwu, south to Po Song of the Minjiang River Basin, its vertical distribution is lower than other larch species, such as Larix spp. (Sequoia), large fruit Sequoia, often in the 2300-3200 meters above sea level between the formation of small pieces of pure forest and mixed forest. Sequoia here, generally up to 25-30