Pinus rigida |
Pinus virginiana |
|
---|---|---|
pin rigide, pitch pine |
Jersey pine, scrub pine, Virginia pine |
|
Habit | Trees to 31m; trunk to 0.9m diam., straight or crooked, commonly with adventitious sprouts; crown rounded or irregular. | Trees to 18m; trunk to 0.5m diam., straight or contorted to erect or leaning; crown irregularly rounded or flattened. |
Bark | red-brown, deeply and irregularly furrowed, with long, irregularly rectangular, flat, scaly ridges, resin pockets absent. |
gray-brown with irregular, scaly-plated ridges, on upper sections of trunk reddish, scaly. |
Branches | arching-spreading to ascending, poorly self-pruning; 2-year-old branchlets stout (mostly over 5mm thick), orange-brown, aging darker brown, rough. |
spreading-ascending to spreading-descending; twigs slender, red- or purple-tinged, often glaucous, aging red-brown to gray, rough. |
Buds | ovoid to ovoid-cylindric, red-brown, ca. 1–1.5cm, resinous; scale margins fringed, apex cuspidate. |
ovoid to cylindric, red-brown, 0.6–1cm, resinous or not resinous; scale margins white-fringed. |
Leaves | 3(–5) per fascicle, spreading to ascending, persisting 2–3 years, 5–10(–15)cm × 1–1.5(–2)mm, straight, twisted, deep to pale yellow-green, all surfaces with fine stomatal lines, margins serrulate, apex abruptly subulate-acuminate; sheath 0.9–1.2cm, base persistent. |
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 | cylindric, ca. 20mm, yellow. |
ellipsoid-cylindric, 10–20mm, red-brown or yellow. |
Seed(s) | cones maturing in 2 years, shedding seeds soon thereafter or variously serotinous and long-persistent, often clustered, symmetric, conic to ovoid before opening, broadly ovoid with flat or slightly convex base when open, 3–9cm, creamy brown to light red-brown, sessile to short-stalked, base truncate, scales firm, with dark red-brown border on adaxial surface distally; apophyses slightly raised, rhombic, with strong transverse keels; umbo central, low-triangular, with slender, downcurved prickle. |
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 rigida |
Pinus virginiana |
|
Habitat | Upland or lowland, sterile, dry to boggy soils | Dry uplands, sterile sandy or shaly barrens, old fields, and lower mountains |
Elevation | 0–1400m (0–4600ft) | 0–900m (0–3000ft) |
Distribution |
CT; DE; GA; KY; MA; MD; ME; NC; NH; NJ; NY; OH; PA; RI; SC; TN; VA; VT; WV; ON; QC
|
AL; DE; GA; IN; KY; MD; MS; NC; NJ; NY; OH; PA; SC; TN; VA; WV
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Discussion | Pinus rigida often has poor form and is not valued highly as saw timber. It is fire successional, sprouts adventitiously, and is frequently shrubby in the northern part of its range. It is known to hybridize naturally with P. echinata. (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 | ||
Name authority | Miller: Gard. Dict., ed. 8 Pinus no. 10. (1768) | Miller: Gard. Dict., ed. 8 Pinus no. 9. (1768) |
Web links |