Flora of North America species comparison

red-brown, irregularly furrowed or cross-checked, scaly.

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 and ascending, persistent to near trunk base;

twigs stout, orange-brown, aging brown to gray, sometimes sparsely puberulent.

spreading to ascending, poorly self-pruning;

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

ellipsoid, light red-brown, 0.5–0.7cm, resinous;

scale margins fringed.

cylindric, purple-brown, to 1cm;

scale margins white-fringed.

1(–2) per fascicle, ascending, persisting 4–6(–10) years, 2–6cm × 1.3–2(–2.5)mm, curved, terete (though often 2-grooved), gray-green, all surfaces with stomatal lines, margins entire, apex subulate;

sheath 0.5–1cm, scales soon recurved, forming rosette, shed early.

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, ca. 10mm, yellow.

ellipsoid, ca. 10mm, brownish yellow.

cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, ovoid before opening, broadly depressed-ovoid to nearly globose when open, 4–6(–8)cm, pale yellow-brown, nearly sessile;

apophyses thickened, slightly raised;

umbo subcentral, raised or depressed, nearly truncate, apiculate.

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.