common and widely distributed tall timber pine of western North America having dark green needles in bunches of 2 to 5 and thick bark with dark brown plates when mature
Other species, like the ponderosa pines seen burning in this aerial shot of an Idaho fire, need frequent but more mild, low-level fires to thrive. 其它的种类，像美国黄松看到烧上在这空中的拍照一个爱达荷火灾，需要经常但是更多轻微的，低水平的火灾使繁荣兴旺。
