Pinus albicaulis Engelm.
Whitebark pine
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).
Plants: 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).
Leaves: Needles are in groups of five, tending to curve upward, 1–2½″ long ⨉ 1/32″ wide (3–7 cm ⨉ 1.5 mm), and deep yellow-green.
Fruits: Cones are oval to roughly cylindrical, ⅜–½″ (1–1.5 cm) long, and bright red when flowering.
Habitats: Thin, rocky soils near or somewhat below the timberline.
For further information, see the Pinus comparison tables.
Online References:
References:
8/29/2007 · Mt. Mazama Crater Lake Rim Road, Oregon 
8/29/2007 · Mt. Mazama Crater Lake Rim Road, Oregon 
8/29/2007 · Mt. Mazama Crater Lake Rim Road, Oregon 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Coniferophyta | Conifers—cone-bearing trees (and a few shrubs) |
| Class | Pinopsida | Gymnosperms such as cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews |
| Order | Pinales | Cone-bearing plants: cedar, cypress, fir, juniper, larch, pine, redwood, spruce, yew, and others |
| Family | Pinaceae | Pine family: cedars, firs, hemlocks, larches, pines and spruces |
| Genus | Pinus | Latin for “pine” |
| Species | albicaulis | “White-stemmed” |
Pinus albicaulis description by Thomas H. Kent, not updated.
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