Flora of North America species comparison

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

gray to red-brown, shallowly fissured, with long, flat, irregular ridges.

persistent to near trunk base;

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

contorted;

twigs pale red-brown, aging gray, puberulent, young branches resembling long bottlebrushes because of persistent leaves.

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

ovoid-acuminate, pale red-brown, ca. 1cm, 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.

5 per fascicle, upcurved, persisting 10–17 years, (2–)3–4cm × 0.8–1mm, mostly connivent, deep blue-green, with drops and scales of resin, abaxial surface with strong, narrow median groove, adaxial surfaces conspicuously whitened by stomates, margins entire or distantly serrulate, apex conic-acute to conic-subulate;

sheath 0.5–1.5cm, scales soon recurving, shed early.

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

ellipsoid, ca. 10mm, bluish to red.

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, shedding seeds and falling soon thereafter, spreading, symmetric, lance-cylindric before opening, lance-ovoid to ovoid or cylindric when open, 6–11cm, purple to brown, nearly sessile;

apophyses much thickened;

umbo central, with triangular base, extended into slender, brittle prickle 4–10mm.

=24.

=24.