General:
Tree to 40-50 m tall; bark thick, deeply furrowed, dark reddish-brown or blackish when young, changing to cinnamon red when older and exfoliating as irregular scales.

Leaves:
Needles mostly in threes, often twos, occasionally fours or fives, (10) 12-20 (25) cm long, clustered towards branch ends; yellowish-green.

Cones:
Seed cones near branch tips, deep reddish-purple when young, maturing late in second year, turning brown; egg-shaped, 8-14 cm long; scales brown with thickened, yellowish, prickly tip; pollen cones yellow to purplish, strongly clustered.

Source:  The Illustrated Flora of British Columbia