Flora of North America species comparison

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

brown to gray- or red-brown, platy to furrowed.

spreading-ascending;

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

slender, orange to red-brown, aging darker brown, rough.

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

scale margins fringed.

narrowly to broadly ovoid, dark red-brown, to 1.2cm, slightly resinous.

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.

2 per fascicle, spreading or ascending, persisting 3–8 years, 2–8cm × 0.7–2(–3)mm, twisted, yellow-green to dark green, all surfaces with fine stomatal lines, margins finely serrulate, apex blunt to acute or narrowly acuminate;

sheath 0.3–0.6(–1)cm, persistent.

ellipsoid, ca. 15mm, dark purple.

ellipsoid to cylindric, 5–15mm, orange-red.

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.

cones maturing in 2 years or variably serotinous, variably persistent, spreading to reflexed, often curved, nearly symmetric or variably asymmetric, lanceoloid to ovoid before opening, broadly ovoid to nearly globose when open, 2–6cm, tan to pale red-brown, lustrous, nearly sessile or on stalks to 1cm;

apophyses nearly rhombic, variously elongate, cross-keeled, often mammillate toward outer cone base and on inside above middle;

umbo central, depressed-triangular, prickle barely elongate to stubby or slender and to 6mm.

branches often descending, the upper spreading or ascending.

=24.

=24 (variety not indicated).