Flora of North America species comparison

red-brown, irregularly furrowed or cross-checked, scaly.

pale gray, from distance appearing whitish to light gray and smooth, in age separating into thin plates.

spreading and ascending, persistent to near trunk base;

twigs stout, orange-brown, aging brown to gray, sometimes sparsely puberulent.

spreading to ascending, often persistent to trunk base;

twigs stout, pale red-brown, with light brown, often glandular puberulence, somewhat roughened by elevated scars, aging gray to pale gray-brown.

ellipsoid, light red-brown, 0.5–0.7cm, resinous;

scale margins fringed.

ovoid, light red-brown, 0.8–1cm;

scale margins entire.

1(–2) per fascicle, ascending, persisting 4–6(–10) years, 2–6cm × 1.3–2(–2.5)mm, curved, terete (though often 2-grooved), gray-green, all surfaces with stomatal lines, margins entire, apex subulate;

sheath 0.5–1cm, scales soon recurved, forming rosette, shed early.

5 per fascicle, mostly ascending and upcurved, persisting 5–8 years, 3–7cm × 1–1.5(–2)mm, mostly connivent, deep yellow-green, abaxial surface less so, adaxial surface conspicuously whitened by stomates, margins rounded, minutely serrulate distally, apex conic-acute;

sheath 0.8–1.2cm, shed early.

ellipsoid, ca. 10mm, yellow.

cylindro-ovoid, ca. 10–15mm, scarlet.

cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, ovoid before opening, broadly depressed-ovoid to nearly globose when open, 4–6(–8)cm, pale yellow-brown, nearly sessile;

apophyses thickened, slightly raised;

umbo subcentral, raised or depressed, nearly truncate, apiculate.

cones remaining on tree (unless dislodged by animals), not opening naturally but through animal agency, spreading, symmetric, broadly ovoid to depressed-ovoid or nearly globose, 4–8cm, dull gray- to black-purple, sessile to short-stalked;

scales thin-based and easily broken off;

apophyses much thickened, strongly cross-keeled, tip upcurved, brown;

umbo terminal, short, incurved, broadly triangular, tip acute.

=24.

=24.