Flora of North America species comparison

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

red-brown to dark brown, shallowly and irregularly furrowed, ridges broad, scaly.

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.

spreading-ascending;

twigs red-brown, sometimes finely papillate, aging gray to gray-brown.

ovoid, light red-brown, 0.8–1cm;

scale margins entire.

ovoid to short cylindric, pale red-brown, 0.5–1.2cm, slightly resinous.

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.

(2–)3(–4) per fascicle, spreading to upcurved, persisting 3–4 years, 2–6cm × 0.6–0.9(–1)mm, connivent, 2–3-sided, blue- to gray-green, abaxial surface not conspicuously whitened with stomatal bands or if stomatal bands present, these less conspicuous than on adaxial surfaces, often with 2 subepidermal resin bands evident, adaxial surfaces conspicuously whitened with stomatal lines, margins entire to finely serrulate, apex narrowly conic or subulate;

sheath 0.5–0.7cm, scales soon recurved, forming rosette, shed early.

cylindro-ovoid, ca. 10–15mm, scarlet.

ellipsoid, to 10mm, yellow.

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.

cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, ovoid before opening, broadly depressed-ovoid to nearly globose when open, 1–3.5cm, pale yellow- to pale red-brown, resinous, nearly sessile or short-stalked;

apophyses thickened, slightly domed, angulate, transversely keeled;

umbo subcentral, slightly raised to depressed, truncate or umbilicate.

=24.

=24.