Pinus longaeva |
Pinus monticola |
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western white pine |
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Habit | Trees to 70 m tall; mature crown conic. | |
Buds | ellipsoid to cylindric; reddish brown, resinous. |
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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. |
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Pollen cones | ellipsoid, 10–15 mm long, yellow. |
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Seeds | obovoid, 5–7 mm long; reddish brown; wings about 4 times as long as body. |
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Trunks | to 2.5 m in diameter; straight; bark gray, forming scaly plates; branches spreading and ascending; twigs reddish brown; smooth. |
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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. |
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2n | =24. |
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Pinus longaeva |
Pinus monticola |
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Distribution | ||
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. |
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Source | Flora of Oregon, volume 1, page 123 Stephen Meyers |
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Sibling taxa | ||
Web links |
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