Flora of North America species comparison

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

red-brown, forming square or irregularly rectangular, scaly plates, resin pockets absent.

spreading and ascending, persistent to near trunk base;

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

spreading-ascending;

twigs moderately slender (to ca. 1cm thick), orangish to yellow-brown, aging darker brown, rough.

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

scale margins fringed.

lance-cylindric, pale red-brown, 1–1.2(–2)cm, mostly less than 1cm broad, slightly resinous;

scale margins white-fringed, apex acuminate.

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.

2–3 per fascicle, ascending to spreading, persisting 3 years, (10–)12–18(–23)cm × 1–2mm, straight, slightly twisted, pliant, deep yellow-green, all surfaces with narrow stomatal lines, margins finely serrulate, apex acute to abruptly conic-subulate;

sheath 1–2.5cm, base persistent.

ellipsoid, ca. 10mm, yellow.

cylindric, 20–40mm, yellow to yellow-brown.

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, not persistent, solitary or in small clusters, nearly terminal, symmetric, lanceoloid before opening, narrowly ovoid when open, 6–12cm, mostly dull yellow-brown, sessile to nearly sessile, scales without dark border on adaxial surface distally;

apophyses dull, slightly thickened, variously raised (more so toward cone base), rhombic, strongly transversely keeled;

umbo central, recurved, stoutly pyramidal, tapering to stout-based, sharp prickle.

=24.

=24.