Flora of North America species comparison

gray, nearly smooth, cross-checked in age into scaly plates and ridges.

orange- to red-brown, scaly.

spreading to ascending, often persistent to trunk base;

twigs pale red-brown, puberulous (rarely glabrous), slightly resinous, aging gray, smooth.

descending to spreading-ascending, poorly self-pruning;

twigs slender, orange-red to red-brown, aging gray-brown, rough.

ovoid, light red-brown, 0.9–1cm, resinous;

lower scales ciliolate along margins.

ovoid, red-brown, 0.5–1cm, resinous;

scale margins nearly entire.

5 per fascicle, spreading to upcurved and ascending, persisting 5–6 years, 3–7cm × 1–1.5mm, pliant, dark green, abaxial surface with less conspicuous stomatal bands than adaxial surfaces, adaxial surfaces with strong, pale stomatal bands, margins finely serrulate, apex conic-acute to acuminate;

sheath 1–1.5(–2)cm, shed early.

2 per fascicle, spreading or ascending, persisting 2–3 years, 2–5cm × 1–1.5(–2)mm, twisted, yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex acute to short-subulate;

sheath 0.3–0.6cm, semipersistent.

broadly ellipsoid-cylindric, ca. 15mm, pale red or yellow.

cylindric, 10–15mm, yellow to orange-brown.

cones maturing in 2 years, shedding seeds and falling soon thereafter, spreading, symmetric, lance-ovoid before opening, cylindro-ovoid when open, 7–15cm, straw-colored, resinous, sessile to short-stalked, apophyses much thickened, strongly cross-keeled, umbo terminal, depressed.

cones maturing in 2 years, shedding seeds soon thereafter or often long-serotinous and shedding seeds only through age or fire, upcurved, asymmetric, lanceoloid before opening, ovoid when open, 3–5.5cm, tan to light brown or greenish yellow, slick, nearly sessile or short-stalked, most apophyses depressed but increasingly mammillate toward outer cone base;

umbo central, depressed, small, sunken centrally, unarmed or with a small, reflexed apiculus.

=24.

=24.