Flora of North America species comparison

red-brown, shallowly and irregularly furrowed, ridges scaly, rounded.

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

persistent to near trunk base;

twigs pale red-brown to tan, rarely glaucous, aging gray-brown to gray, glabrous to papillose-puberulent.

horizontally spreading;

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

ovoid to ellipsoid, red-brown, 0.5–1cm, resinous.

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

(1–)2(–3) per fascicle, upcurved, persisting 4–6 years, 2–4cm × (0.9–)1–1.5mm, connivent, 2-sided (1-leaved fascicles with leaves 2-grooved, 3-leaved fascicles with leaves 3-sided), blue-green, all surfaces marked with pale stomatal bands, particularly the adaxial, margins entire or finely serrulate, apex narrowly acute to subulate;

sheath 0.5–0.7cm, scales soon recurved, forming rosette, shed early.

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.

ellipsoid, ca. 7mm, yellowish to red-brown.

ellipsoid, ca. 15mm, yellow.

cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, ovoid before opening, depressed-ovoid to nearly globose when open, ca. (3.5–)4(–5)cm, pale yellow- to pale red-brown, resinous, nearly sessile to short-stalked;

apophyses thickened, raised, angulate;

umbo subcentral, slightly raised or depressed, truncate or umbilicate.

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.

=24.

=24.