Pinus albicaulis Engelm.
Whitebark pine is a native of mountainous regions in the western United States. The Mt. Mazama photos at right are at an elevation of about 1.5 mi (2.5 km).
Identification: Trees are up to 69' (21 m) tall, with trunks up to 5' (1.5 m) in diameter. Crown may be rounded, irregular, or contorted by harsh winds. Bark is pale gray, appearing whitish from a distance (hence the name). Needles are in groups of five, tending to curve upward, 1-2½" (3-7 cm) long × ¹/₃₂" (1.5 mm) wide, and deep yellow-green. Cones are oval to roughly cylindrical, ⅜-½" (1-1.5 cm) long, and bright red when flowering. Whitebark pines are found near or somewhat below the timberline, in thin, rocky soils.
For further information, see the Pinus comparison tables.
Pinus albicaulis on The Gymnosperm Database
Pinus albicaulis on the USDA Forest Service's Fire Effects Information Database
Pinus albicaulis at the USDA Forest Service's Silvics of North America site
Pinus albicaulis on Wikipedia
Pinus albicaulis on the U.S. Fish and Wildlife Service's Endangered Species list
Pinus albicaulis at the Virginia Tech Department of Forest Resources and Environmental Conservation
Pinus albicaulis on CalPhotos
Pinus albicaulis on Wikimedia Commons
Pinus albicaulis description by Thomas H. Kent, last updated 12 Oct 2018.
Range: Zones 3-5: