Flora of North America species comparison

yellow-brown to cinnamon, deeply furrowed and cross-checked, forming large irregular scaly plates.

red-brown to purple-red, deeply furrowed with irregular, elongate, flat, scaly ridges.

spreading-ascending;

twigs stout (to 2cm thick), purple-brown, often glaucous, aging rough.

irregular, spreading-ascending, candelabralike;

twigs stout (1–2cm thick), greenish, aging deep gray-brown to near black, rough.

ovoid, tan to pale red-brown, 2–3cm, not resinous;

scale margins conspicuously fringed.

conic-ovoid, pale brown, to 2.5cm;

scale margins white-fringed.

3 per fascicle, spreading-ascending, persisting (2–)4–6(–7) years, 12–22(–25)cm × ca. 1.5–2mm, slightly twisted, gray- to yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex acute to acuminate;

sheath (1–)1.5–2.5(–3)cm, base persistent.

mostly 5 per fascicle, ascending or spreading, persisting 3–4 years, 15–30cm × ca. 2mm, straight or curved, slightly twisted, dull gray-green, all surfaces with fine stomatal lines, margins serrulate, apex abruptly acute;

sheath to 2cm, shed early, base persistent.

lance-cylindric, 20–35mm, yellow to yellow- or purple-brown or yellow.

ovoid, 20–30mm, yellow.

cones maturing in 2 years, shedding seeds and falling soon thereafter, nearly terminal, spreading, slightly asymmetric at base, ovoid-conic before opening, cylindro-ovoid when open, (10–)15–30cm, light red-brown, nearly sessile or on stalks to 0.5cm, abaxial surface of scales not darker than or sharply contrasting in color with adaxial surface, scales in low spirals (as compared to Pinus ponderosa) of 8 or more per row as viewed from side, those of cones just prior to and after cone fall not so spreading and deflexed, thus not so much separated from adjacent scales;

apophyses slightly thickened and raised, not keeled;

umbo central, slightly raised, with short, slender, reflexed prickle.

cones maturing in 3 years, shedding seeds soon thereafter, persisting to 5 years, lateral, massive, heavy, symmetric, ovoid before opening, broadly ovoid when open, 10–15cm, yellow- to red-brown, lustrous, stalks to 4cm;

apophyses thick, angulately dome-shaped, with 5 low convergent keels;

umbo central, forming short, curved-tipped pyramid.

=24.