Flora of North America species comparison

yellow-brown to cinnamon, deeply furrowed and cross-checked, forming large irregular scaly plates.

dark gray-brown to near black, deeply furrowed, with long, scaly, irregularly anastomosing, rounded ridges.

spreading-ascending;

twigs stout (to 2cm thick), purple-brown, often glaucous, aging rough.

often ascending;

twigs stout to moderately slender, violet-brown, often glaucous, aging gray-brown, rough.

ovoid, tan to pale red-brown, 2–3cm, not resinous;

scale margins conspicuously fringed.

ovoid, deep red-brown, 1.5(–3)cm, resinous;

scale margins white-fringed, apex cuspidate.

3 per fascicle, spreading-ascending, persisting (2–)4–6(–7) years, 12–22(–25)cm × ca. 1.5–2mm, slightly twisted, gray- to yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex acute to acuminate;

sheath (1–)1.5–2.5(–3)cm, base persistent.

3 per fascicle, slightly spreading, not drooping, mostly ascending in a brush, persisting 3–4 years, 15–30cm × ca. 2mm, slightly curved or straight, twisted, dusty gray-green, all surfaces with pale, fine stomatal lines, margins serrulate, apex abruptly subulate;

sheath 2–4cm, base persistent.

lance-cylindric, 20–35mm, yellow to yellow- or purple-brown or yellow.

ovoid to cylindric, to 25mm, light purple-brown, aging orange-brown.

cones maturing in 2 years, shedding seeds and falling soon thereafter, nearly terminal, spreading, slightly asymmetric at base, ovoid-conic before opening, cylindro-ovoid when open, (10–)15–30cm, light red-brown, nearly sessile or on stalks to 0.5cm, abaxial surface of scales not darker than or sharply contrasting in color with adaxial surface, scales in low spirals (as compared to Pinus ponderosa) of 8 or more per row as viewed from side, those of cones just prior to and after cone fall not so spreading and deflexed, thus not so much separated from adjacent scales;

apophyses slightly thickened and raised, not keeled;

umbo central, slightly raised, with short, slender, reflexed prickle.

cones maturing in 2 years, gradually shedding seeds thereafter and moderately persistent, massive, heavy, drooping, asymmetric at base, narrowly ovoid before opening, ovoid-cylindric when open, 20–35cm, pale yellow-brown, resinous, stalks to 3cm;

apophyses transverse-rhombic, strongly and sharply cross-keeled, elongate, curved, continuous with umbos to form long, upcurved claws 2.5–3cm.

=24.

=24.