Flora of North America species comparison

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

light red-brown, furrowed and cross-checked into irregularly rectangular, scaly plates.

persistent to near trunk base;

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

spreading-ascending;

twigs moderately slender (to 1cm thick), orange- to red-brown, aging darker brown, rough.

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

ovoid-acuminate, red-brown, to ca. 2cm, resinous;

scale margins fringed.

(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 per fascicle, straight or slightly twisted, brittle, breaking cleanly when bent, deep yellow-green, all surfaces with narrow stomatal bands, margins serrulate, apex short-conic, acute;

sheath 1–2.5cm, base persistent.

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

ellipsoid, ca. 15mm, dark purple.

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 and opening in 2 years, spreading, symmetric, ovoid before opening, broadly ovoid to nearly globose when open, 3.5–6cm, light red-brown, nearly sessile;

apophyses slightly thickened, slightly raised, transversely low-keeled;

umbo central, centrally depressed, unarmed.

=24.

=24.