The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

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
from FNA
AZ; CA; CO; ID; MT; ND; NE; NM; NV; OR; SD; UT; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
DE; GA; MD; NC; NJ; PA; SC; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
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
P. albicaulis, P. aristata, P. attenuata, P. balfouriana, P. banksiana, P. cembroides, P. clausa, P. contorta, P. coulteri, P. echinata, P. edulis, P. elliottii, P. engelmannii, P. glabra, P. jeffreyi, P. lambertiana, P. leiophylla, P. longaeva, P. monophylla, P. monticola, P. muricata, P. palustris, P. ponderosa, P. pungens, P. quadrifolia, P. radiata, P. resinosa, P. rigida, P. sabiniana, P. serotina, P. strobiformis, P. strobus, P. sylvestris, P. taeda, P. torreyana, P. virginiana, P. washoensis
P. albicaulis, P. aristata, P. attenuata, P. balfouriana, P. banksiana, P. cembroides, P. clausa, P. contorta, P. coulteri, P. echinata, P. edulis, P. elliottii, P. engelmannii, P. flexilis, P. glabra, P. jeffreyi, P. lambertiana, P. leiophylla, P. longaeva, P. monophylla, P. monticola, P. muricata, P. palustris, P. ponderosa, P. quadrifolia, P. radiata, P. resinosa, P. rigida, P. sabiniana, P. serotina, P. strobiformis, P. strobus, P. sylvestris, P. taeda, P. torreyana, P. virginiana, P. washoensis
Synonyms Apinus flexilis
Name authority E. James: Account Exped. Pittsburgh 2: 27, 35. (1823) Lambert: Ann. Bot. (London) 2: 198. (1805)
Web links