Abies procera |
Abies fraseri |
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noble fir |
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Habit | Trees to 80 m tall; mature crown steeple-like, the top rounded. | |
Leaves | 1-ranked, curving upward; flexible to sti?, 1–3.5 cm × 1.5–2 mm; cross section 4-angled, occasionally weakly 4-angled; abaxial surface bluish green, glaucous, with 2–4 whitish bands, 12–28 stomatal rows; adaxial surface bluish green, glaucous, often with 2 whitish bands, 0–14 stomatal rows; apex rounded to notched. |
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Pollen cones | reddish. |
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Seeds | 11–13 × 2–4 mm, tan to brown; wings slightly longer than body. |
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Trunks | to 2.5 m in diameter; bark gray; smooth when young, furrowed and reddish brown with age; branches at right angles to trunk; twigs opposite to whorled, pubescent for several years. |
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Seed cones | oblong-cylindrical, 10–15 cm long, purple to green; scales pubescent; bracts exserted and reflexed over scales, covering over 90% of cone at maturity. |
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2n | =24. |
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Abies procera |
Abies fraseri |
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Distribution | ||
Discussion | Mid-elevation to subalpine forests. 300–2000 m. Casc, CR. CA, WA. Native. Morphological and DNA evidence indicates that no pure Abies magnifica is likely to exist in Oregon. As a result, all previously described populations of A. magnifica are now assigned to A. magnifica × A. procera. Specimens of A. magnifica × A. procera can be distinguished from pure A. procera by seed cone and seed cone bract morphology. |
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Source | Flora of Oregon, volume 1, page 117 Stephen Meyers |
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Sibling taxa | ||
Synonyms | Abies nobilis | |
Web links |
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