Pinus virginiana

Miller

Gard. Dict., ed. 8 Pinus no. 9. 1768.

Common names: Virginia pine
Endemic
Treatment appears in FNA Volume 2.
Revision as of 23:35, 29 July 2020 by imported>Volume Importer
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Trees to 18m; trunk to 0.5m diam., straight or contorted to erect or leaning; crown irregularly rounded or flattened. Bark gray-brown with irregular, scaly-plated ridges, on upper sections of trunk reddish, scaly. Branches spreading-ascending to spreading-descending; twigs slender, red or purple-tinged, often glaucous, aging redbrown to gray, rough. Buds ovoid to cylindric, redbrown, 0.6–1cm, resinous or not resinous; scale margins white-fringed. Leaves 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-cylindric, 10–20mm, redbrown or yellow. Seed-cones maturing in 2 years, shedding seeds soon thereafter, persisting to 5 years, symmetric, lanceovoid or lanceoloid before opening, ovoid when open, 3–7 (–8) cm, dull redbrown, 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. Seeds compressed-obovoid, oblique apically; body 4–7mm, pale-brown, mottled darker; wing narrow, to 20mm. 2n =24.


Habitat: Dry uplands, sterile sandy or shaly barrens, old fields, and lower mountains
Elevation: 0–900m

Distribution

V2 802-distribution-map.gif

Ala., Del., Ga., Ind., Ky., Md., Miss., N.J., N.Y., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.

Discussion

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.

Selected References

None.

Lower Taxa

None.

"relatively thin" is not a number.

... more about "Pinus virginiana"
resinous +
Robert Kral +
Miller +
gray-brown +
persistent +
mottled darker +  and pale-brown +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
purple-brown +, purple-red +  and strong +
spreading-ascending +  and spreading-descending +
not resinous +  and resinous +
conspicuous +
ovoid;cylindric +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Virginia pine +
on stalks +  and sessile +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
lanceoloid +, lanceovoid +  and symmetric +
flattened +  and rounded +
Ala. +, Del. +, Ga. +, Ind. +, Ky. +, Md. +, Miss. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, S.C. +, Tenn. +, Va. +  and W.Va. +
0–900m +
sheathed +  and sessile +
rounded +, 2-3-angled +  and terete +
Dry uplands, sterile sandy or shaly barrens, old fields, and lower mountains +
arranged +  and fascicles +
pale yellow-green +
persisting +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ascending;spreading +
3 (?) +  and 4 (?) +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
inconspicuous +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not winged +  and 2-winged +
yellow +  and redbrown +
ellipsoid-cylindric +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Gard. Dict., ed. 8 +
scaly-plated +
fibrous;woody +
arranged +  and overlapping +
persistent +
white-fringed +
flattened +
grouped +  and solitary +
long-persistent +
wingless +, winged +, stalked +  and sessile +
persistent +
pendent;more or less erect +
compressed-obovoid +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reduced;well-defined short +
inconspicuous +
extended +
Apinus +, Strobus +  and Caryopitys +
Pinus virginiana +
species +
decurrent +  and elongate +
straight +
leaning +  and erect +
redbrown +  and gray +
slender +
low-pyramidal +
reduced +
0 cm0 mm <br />0 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
5 +  and 2 +