Flora of North America species comparison

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

light red-brown, furrowed and cross-checked into irregularly rectangular, scaly plates.

spreading-ascending to spreading-descending;

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

spreading-ascending;

twigs moderately slender (to 1cm thick), orange- to red-brown, aging darker brown, rough.

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

scale margins white-fringed.

ovoid-acuminate, red-brown, to ca. 2cm, resinous;

scale margins fringed.

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.

2 per fascicle, straight or slightly twisted, brittle, breaking cleanly when bent, deep yellow-green, all surfaces with narrow stomatal bands, margins serrulate, apex short-conic, acute;

sheath 1–2.5cm, base persistent.

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

ellipsoid, ca. 15mm, dark purple.

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 and opening in 2 years, spreading, symmetric, ovoid before opening, broadly ovoid to nearly globose when open, 3.5–6cm, light red-brown, nearly sessile;

apophyses slightly thickened, slightly raised, transversely low-keeled;

umbo central, centrally depressed, unarmed.

=24.

=24.