Flora of North America species comparison

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

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

horizontally spreading;

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

contorted;

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

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

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

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.

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. 15mm, yellow.

ellipsoid, ca. 10mm, bluish to red.

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 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.