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| | Whitebark Pine - Wikipedia, the free encyclopedia |
 | | The Whitebark Pine (Pinus albicaulis; family Pinaceae) is a species of pine tree that occurs in the mountains of the Western United States and Canada, specifically the subalpine areas of the Sierra Nevada, the Cascade Range, the Pacific Coast Ranges, and the Rocky Mountains (including the Greater Yellowstone Ecosystem). |
 | | Whitebark Pine is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. |
 | | Unfortunately, Whitebark Pines in Washington, Idaho, Montana, British Columbia, and Alberta are afflicted with White Pine Blister Rust (Cronartium ribicola), a fungus that was introduced from Europe. |
| en.wikipedia.org /wiki/Whitebark_pine (744 words) |
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