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Pinus albicaulis

Pinus albicaulis Engelm.

 

Whitebark Pine

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionConiferophytaConifers—cone-bearing trees (and a few shrubs)
ClassPinopsidaGymnosperms such as cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews
OrderPinalesCone-bearing plants: cedar, cypress, fir, juniper, larch, pine, redwood, spruce, yew, and others
FamilyPinaceaePine family: cedars, firs, hemlocks, larches, pines and spruces
GenusPinusLatin for “pine”
Speciesalbicaulis“White-stemmed”

About plant names...

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.

Online References:

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 at the Vanderbilt University Bioimages web site

Pinus albicaulis on Wikimedia Commons

References:

Sibley, David Allen, The Sibley Guide to Trees, Alfred A. Knopf, 2009, p. 9

Pinus albicaulis description by Thomas H. Kent, last updated 16 Aug 2013.

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Pinus albicaulis (Whitebark Pine)

8/29/2007 · Mt. Mazama Crater Lake Rim Road, OR
≈ 8½ × 5½' (2.7 × 1.8 m)

Pinus albicaulis (Whitebark Pine)

8/29/2007 · Mt. Mazama Crater Lake Rim Road, OR
≈ 11 × 7½' (3.5 × 2.3 m)

Pinus albicaulis (Whitebark Pine)

8/29/2007 · Mt. Mazama Crater Lake Rim Road, OR

Range: Zones 3-5:

About this map...