10:00 PM, Apr. 29, 2012 BILLINGS — The U.S. Forest Service is attempting to grow whitebark pine that are resistant to blister rust as part of an effort to prevent the high-elevation tree from dying

"Trees to 21 m tall; trunk to 1.5 m diam., straight to twisted and contorted; crown conic, becoming rounded to irregularly spreading. Bark pale gray, from a distance appearing whitish to light gray an

Whitebark Pine Pinus albicaulis. By Laura Roady This story is featured in Montana Outdoors September-October 2010 issue The whitebark pine’s smooth, rigid needles, 1.5 to 3 inches long, grow in