Flora of North America species comparison

red- to gray-brown, irregularly checked into scaly plates.

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

horizontally spreading;

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

spreading-ascending;

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

ovoid to cylindric, red-brown, 0.6–0.9cm, resinous.

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

scale margins white-fringed, apex acuminate.

2(–3) per fascicle, spreading or ascending, persisting 3 years, 3–6(–8)cm × 1–1.5mm, twisted, deep yellow-green, all surfaces with fine stomatal lines, margins harshly serrulate, apex acute to short-acuminate;

sheath 0.5–1cm, base persistent.

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. 15mm, yellow.

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

cones maturing in 2 years, variably serotinous, mostly whorled, downcurved, asymmetric, ovoid before opening, broadly ovoid when open, (4–)6–10cm, gray- to pale red-brown, nearly sessile or on stalks to 1cm;

apophyses thickened, diamond-shaped, strongly keeled, elongate, mammillate at cone base abaxially;

umbo central, a stout, curved, sharp claw.

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.