Flora of North America species comparison

dark gray, deeply furrowed, ridges long, scaly-plated.

gray to gray-brown, furrowed, with narrow, flat, irregular ridges, resin pockets absent, on upper sections of the trunk reddish to red-brown, platy becoming smooth distally.

spreading-ascending, often contorted;

twigs stout to slender, orange-brown, aging darker brown, rough.

spreading to ascending, poorly self-pruning;

twigs slender, violet- to red-brown, rarely glaucous, aging gray, smooth.

ovoid-cylindric, dark brown, 1–2.5cm, resinous.

cylindric, purple-brown, to 1cm;

scale margins white-fringed.

2 per fascicle, spreading to upcurved, persisting 2–3 years, 8–15cm × (1.2–)1.5(–2)mm, slightly twisted, dark yellow-green, all surfaces with stomatal lines, margins strongly serrulate, apex abruptly conic-acute;

sheath to 1.5cm, base persistent.

2 per fascicle, spreading-ascending, persisting 2–3 years, (3–)6–9(–10)cm × ca. 1mm, straight, slightly twisted, dark green, all surfaces with fine, inconspicuous stomatal lines, margins finely serrulate, apex short-conic;

sheath 0.3–0.5(–0.7)cm, base persistent.

ellipsoid, to 5mm, orange.

ellipsoid, ca. 10mm, brownish yellow.

cones maturing in 3 years, serotinous, long-persistent, mostly in whorls, mostly asymmetric, lanceoloid-ovoid before opening, curved-ovoid when open, 4–9cm, glossy bright to pale red-brown, sessile or on stalks to 1cm, mostly downcurved, scales with deep red-brown border distally on adaxial surface;

apophyses much thickened, the abaxial ones progressively more angulately dome-shaped toward base of cone;

umbo central, a stout-based, curved claw.

cones maturing in 2 years, shedding seeds soon thereafter or often long-serotinous, long-persistent, solitary or whorled, spreading, symmetric (rarely slightly asymmetric, reflexed), lanceoloid before opening, ovoid to broadly ovoid when open, 3–8cm, red-brown, sessile or on stalks to 1cm, scales with dark red-brown, purple, or purple-gray border distally on adaxial surface;

apophyses thickened, shallowly and angulately raised, transversely rhombic, cross-keeled;

umbo central, low-pyramidal, tapering to sharp tip or weak, often deciduous prickle.

=24.

=24.