Pinus monticola |
Pinus virginiana |
|
---|---|---|
pin argenté, western white pine |
Jersey pine, scrub pine, Virginia pine |
|
Habit | Trees to 70m; trunk to 2.5m diam., straight; crown narrowly conic, becoming broad and flattened. | Trees to 18m; trunk to 0.5m diam., straight or contorted to erect or leaning; crown irregularly rounded or flattened. |
Bark | gray, distinctly platy, plates scaly. |
gray-brown with irregular, scaly-plated ridges, on upper sections of trunk reddish, scaly. |
Branches | nearly whorled, spreading-ascending; twigs slender, pale red-brown, rusty puberulent and slightly glandular (rarely glabrous), aging purple-brown or gray, smooth. |
spreading-ascending to spreading-descending; twigs slender, red- or purple-tinged, often glaucous, aging red-brown to gray, rough. |
Buds | ellipsoid or cylindric, rust-colored, 0.4–0.5cm, slightly resinous. |
ovoid to cylindric, red-brown, 0.6–1cm, resinous or not resinous; scale margins white-fringed. |
Leaves | 5 per fascicle, spreading to ascending, persisting 3–4 years, 4–10cm × 0.7–1mm, straight, slightly twisted, pliant, blue-green, abaxial surface without evident stomatal lines, adaxial surfaces with evident stomatal lines, margins finely serrulate, apex broadly to narrowly acute; sheath 1–1.5cm, shed early. |
2 per fascicle, spreading or ascending, persisting 3–4 years, 2–8cm × 1–1.5mm, strongly twisted, deep to pale yellow-green, all surfaces with inconspicuous stomatal lines, margins serrulate, apex narrowly acute; sheath 0.4–1cm, base persistent. |
Pollen cones | ellipsoid, 10–15mm, yellow. |
ellipsoid-cylindric, 10–20mm, red-brown or yellow. |
Seed(s) | cones maturing in 2 years, shedding seeds and falling soon thereafter, clustered, pendent, symmetric, lance-cylindric to ellipsoid-cylindric before opening, broadly lanceoloid to ellipsoid-cylindric when open, 10–25cm, creamy brown to yellowish, without purple or gray tints, resinous, stalks to 2cm; umbo terminal, depressed. |
cones maturing in 2 years, shedding seeds soon thereafter, persisting to 5 years, symmetric, lance-ovoid or lanceoloid before opening, ovoid when open, 3–7(–8)cm, dull red-brown, nearly sessile or on stalks to 1cm, scales rigid, with strong purple-red or purple-brown border on adaxial surface distally; apophyses slightly thickened, slightly elongate; umbo central, low-pyramidal, with slender, stiff prickle. |
2n | =24. |
=24. |
Pinus monticola |
Pinus virginiana |
|
Habitat | Montane moist forests, lowland fog forests | Dry uplands, sterile sandy or shaly barrens, old fields, and lower mountains |
Elevation | 0–3000m (0–9800ft) | 0–900m (0–3000ft) |
Distribution |
CA; ID; MT; NV; OR; WA; AB; BC
|
AL; DE; GA; IN; KY; MD; MS; NC; NJ; NY; OH; PA; SC; TN; VA; WV
|
Discussion | Pinus monticola is the most important western source for matchwood. Its wood lacks the sugary exudates seen in P. lambertiana. Western white pine (Pinus monticola) is the state tree of Idaho. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Pinus virginiana is weedy and fire successional and often forms large stands. It is mostly too small and too profusely branched to be valued except as pulpwood. (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 | Strobus monticola | |
Name authority | Douglas ex D. Don: in Lambert, Descr. Pinus [ed. 3] 2: unnumbered page between 144 and 145. (1832) | Miller: Gard. Dict., ed. 8 Pinus no. 9. (1768) |
Web links |
|