Flora of North America species comparison

gray-brown with irregular, scaly-plated ridges, on upper sections of trunk reddish, scaly.

gray, distinctly platy, plates scaly.

spreading-ascending to spreading-descending;

twigs slender, red- or purple-tinged, often glaucous, aging red-brown to gray, rough.

nearly whorled, spreading-ascending;

twigs slender, pale red-brown, rusty puberulent and slightly glandular (rarely glabrous), aging purple-brown or gray, smooth.

ovoid to cylindric, red-brown, 0.6–1cm, resinous or not resinous;

scale margins white-fringed.

ellipsoid or cylindric, rust-colored, 0.4–0.5cm, slightly resinous.

2 per fascicle, spreading or ascending, persisting 3–4 years, 2–8cm × 1–1.5mm, strongly twisted, deep to pale yellow-green, all surfaces with inconspicuous stomatal lines, margins serrulate, apex narrowly acute;

sheath 0.4–1cm, base persistent.

5 per fascicle, spreading to ascending, persisting 3–4 years, 4–10cm × 0.7–1mm, straight, slightly twisted, pliant, blue-green, abaxial surface without evident stomatal lines, adaxial surfaces with evident stomatal lines, margins finely serrulate, apex broadly to narrowly acute;

sheath 1–1.5cm, shed early.

ellipsoid-cylindric, 10–20mm, red-brown or yellow.

ellipsoid, 10–15mm, yellow.

cones maturing in 2 years, shedding seeds soon thereafter, persisting to 5 years, symmetric, lance-ovoid or lanceoloid before opening, ovoid when open, 3–7(–8)cm, dull red-brown, nearly sessile or on stalks to 1cm, scales rigid, with strong purple-red or purple-brown border on adaxial surface distally;

apophyses slightly thickened, slightly elongate;

umbo central, low-pyramidal, with slender, stiff prickle.

cones maturing in 2 years, shedding seeds and falling soon thereafter, clustered, pendent, symmetric, lance-cylindric to ellipsoid-cylindric before opening, broadly lanceoloid to ellipsoid-cylindric when open, 10–25cm, creamy brown to yellowish, without purple or gray tints, resinous, stalks to 2cm;

umbo terminal, depressed.

=24.

=24.