Picea sitchensis |
Picea abies |
|
---|---|---|
Sitka spruce, épinette de Sitka |
Norway spruce, épinette de norvège |
|
Habit | Trees to 80m; trunk to 5m diam.; crown narrowly conic. | Trees to 30m; trunk to 2m diam.; crown conic. |
Bark | grayish brown to orange-brown. |
gray-brown, scaly. |
Branches | somewhat drooping; twigs not pendent, rather stout, pinkish brown, glabrous. |
short and stout, the upper ascending, the lower drooping; twigs stout, reddish brown, usually glabrous. |
Buds | reddish brown, 5–10mm, apex rounded. |
reddish brown, 5–7mm, apex acute. |
Leaves | (1.2–)1.5–2.5(–3)cm, flattened or broadly triangular in cross section (abaxial surface rounded or slightly angular), rather rigid, blue-green to light yellow-green, abaxial surface darker green with stomatal bands very narrow or absent, adaxial surface glaucous with conspicuous stomatal bands separated by ridge, apex sharp-pointed. |
1–2.5cm, 4-angled in cross section, rigid, light to dark green, bearing stomates on all surfaces, apex blunt-tipped. |
Seed | cones 5–9(–10)cm; scales variable, elliptic to narrowly diamond-shaped, 15–22 × 12–16mm, rather rigid, margin at apex erose, apex extending 4–8mm beyond seed-wing impression. |
cones (10–)12–16cm; scales diamond-shaped, widest near middle, 18–30 × 15–20mm, thin and flexuous, margin at apex erose to toothed, apex extending 6–10mm beyond seed-wing impression. |
2n | =24. |
=24. |
Picea sitchensis |
Picea abies |
|
Habitat | Pacific coastal forests | Woods and persisting after cultivation. |
Elevation | 0–900m (0–3000ft) | |
Distribution |
AK; CA; OR; WA; BC
|
MN; probably elsewhere; Europe [Introduced in North America]
|
Discussion | Picea sitchensis intergrades extensively with P. glauca in the river inlets of north coastal British Columbia and coastal Alaska. The name P. × lutzii Little is applied to hybrids between the two species (R.Daubenmire 1968). Sitka spruce (Picea sitchensis) is the state tree of Alaska. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Norway spruce, native to Europe, has become locally naturalized, at least in north central United States (and adjacent Canada). The species is the most widely cultivated spruce in North America; many cultivars exist, including dwarf shrubs. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 2. | FNA vol. 2, p. 370. |
Parent taxa | Pinaceae > Picea | Pinaceae > Picea |
Sibling taxa | ||
Synonyms | Pinus sitchensis, Abies falcata, Abies menziesii, P. falcata, P. menziesii, Pinus menziesii | Pinus abies |
Name authority | (Bongard) Carrière | (Linnaeus) H. Karsten: Deut. Fl. 2/3: 324. (1881) |
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