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western white pine

Habit Trees to 70 m tall; mature crown conic.
Buds

ellipsoid to cylindric; reddish brown, resinous.

Leaves

in clusters of 5; straight, slightly twisted, 4–10 cm × 0.7–1 mm, blue-green;

margins finely serrulate;

abaxial surface without stomatal lines;

adaxial surface with stomatal lines;

apex acute;

sheaths deciduous.

Pollen cones

ellipsoid, 10–15 mm long, yellow.

Seeds

obovoid, 5–7 mm long; reddish brown;

wings about 4 times as long as body.

Trunks

to 2.5 m in diameter; straight;

bark gray, forming scaly plates;

branches spreading and ascending;

twigs reddish brown; smooth.

Seed cones

lanceoloid to cylindric, symmetric, 10–25 cm long, brown to yellowish, pendent;

stalks less than 2 cm long, maturing in 2 years, opening at maturity;

umbos terminal, depressed.

2n

=24.

Pinus longaeva

Pinus monticola

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Montane forests, wetlands. 400–2500 m. BR, BW, Casc, CR, ECas, Sisk. CA, ID, NV, WA; north to British Columbia, northeast to MT. Native.

Pinus monticola is the state tree of Idaho.

Source Flora of Oregon, volume 1, page 123
Stephen Meyers
Sibling taxa
P. albicaulis, P. attenuata, P. attenuata x Pinus radiata, P. balfouriana, P. contorta, P. flexilis, P. jeffreyi, P. lambertiana, P. monophylla, P. monticola, P. muricata, P. pinaster, P. ponderosa, P. sabiniana, P. sylvestris
P. albicaulis, P. attenuata, P. attenuata x Pinus radiata, P. balfouriana, P. contorta, P. flexilis, P. jeffreyi, P. lambertiana, P. monophylla, P. muricata, P. pinaster, P. ponderosa, P. sabiniana, P. sylvestris
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