Pinus flexilis |
Pinus pungens |
|
---|---|---|
limber pine, pin blanc de l'ouest |
hickory pine, mountain pine, prickley pine, table mountain pine |
|
Habit | Trees to 26m; trunk to 2m diam., straight to contorted; crown conic, becoming rounded. | Trees to 12m; trunk to 0.6m diam., straight to crooked, erect to leaning, poorly self-pruning; crown irregularly rounded or flattened. |
Bark | gray, nearly smooth, cross-checked in age into scaly plates and ridges. |
red- to gray-brown, irregularly checked into scaly plates. |
Branches | spreading to ascending, often persistent to trunk base; twigs pale red-brown, puberulous (rarely glabrous), slightly resinous, aging gray, smooth. |
horizontally spreading; twigs slender, orange- to yellow-brown, aging darker brown, rough. |
Buds | ovoid, light red-brown, 0.9–1cm, resinous; lower scales ciliolate along margins. |
ovoid to cylindric, red-brown, 0.6–0.9cm, resinous. |
Leaves | 5 per fascicle, spreading to upcurved and ascending, persisting 5–6 years, 3–7cm × 1–1.5mm, pliant, dark green, abaxial surface with less conspicuous stomatal bands than adaxial surfaces, adaxial surfaces with strong, pale stomatal bands, margins finely serrulate, apex conic-acute to acuminate; sheath 1–1.5(–2)cm, shed early. |
2(–3) per fascicle, spreading or ascending, persisting 3 years, 3–6(–8)cm × 1–1.5mm, twisted, deep yellow-green, all surfaces with fine stomatal lines, margins harshly serrulate, apex acute to short-acuminate; sheath 0.5–1cm, base persistent. |
Pollen cones | broadly ellipsoid-cylindric, ca. 15mm, pale red or yellow. |
ellipsoid, ca. 15mm, yellow. |
Seed(s) | cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, lance-ovoid before opening, cylindro-ovoid when open, 7–15cm, straw-colored, resinous, sessile to short-stalked, apophyses much thickened, strongly cross-keeled, umbo terminal, depressed. |
cones maturing in 2 years, variably serotinous, mostly whorled, downcurved, asymmetric, ovoid before opening, broadly ovoid when open, (4–)6–10cm, gray- to pale red-brown, nearly sessile or on stalks to 1cm; apophyses thickened, diamond-shaped, strongly keeled, elongate, mammillate at cone base abaxially; umbo central, a stout, curved, sharp claw. |
2n | =24. |
=24. |
Pinus flexilis |
Pinus pungens |
|
Habitat | High montane forests, often at timberline | Dry, mostly sandy or shaly uplands, Appalachians and associated Piedmont |
Elevation | (1000–)1500–3600m ((3300–)4900–11800ft) | 500–1350m (1600–4400ft) |
Distribution |
AZ; CA; CO; ID; MT; ND; NE; NM; NV; OR; SD; UT; WY; AB; BC
|
DE; GA; MD; NC; NJ; PA; SC; TN; VA; WV
|
Discussion | Pinus flexilis, much branched with a strongly tapering trunk, is little utilized because of its form and relative inaccessibility. It reportedly forms intermediates with P. strobiformis where the two overlap. The fresh-cut wood has the odor of turpentine. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Pinus pungens is a scrub pine and is too small and knotty to be much utilized except for pulpwood and firewood. Its common name refers to a general type of landform, not to a specific, named mountain. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 2. | FNA vol. 2. |
Parent taxa | Pinaceae > Pinus | Pinaceae > Pinus |
Sibling taxa | ||
Synonyms | Apinus flexilis | |
Name authority | E. James: Account Exped. Pittsburgh 2: 27, 35. (1823) | Lambert: Ann. Bot. (London) 2: 198. (1805) |
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