Flora of North America species comparison

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

orange- to red-brown, scaly.

persistent to near trunk base;

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

descending to spreading-ascending, poorly self-pruning;

twigs slender, orange-red to red-brown, aging gray-brown, rough.

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

ovoid, red-brown, 0.5–1cm, resinous;

scale margins nearly entire.

(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, spreading or ascending, persisting 2–3 years, 2–5cm × 1–1.5(–2)mm, twisted, yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex acute to short-subulate;

sheath 0.3–0.6cm, semipersistent.

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

cylindric, 10–15mm, yellow to orange-brown.

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 soon thereafter or often long-serotinous and shedding seeds only through age or fire, upcurved, asymmetric, lanceoloid before opening, ovoid when open, 3–5.5cm, tan to light brown or greenish yellow, slick, nearly sessile or short-stalked, most apophyses depressed but increasingly mammillate toward outer cone base;

umbo central, depressed, small, sunken centrally, unarmed or with a small, reflexed apiculus.

=24.

=24.