a coniferous tree, Pseudotsuga menziesii, of western North America, often more than 200 ft. (60 m) high, having reddish-brown bark, flattened needles, and narrow, light-brown cones, and yielding a strong, durable timber: the state tree of Oregon. Also called Douglas pine, Douglas spruce, Oregon fir, Oregon pine .
[ 1855-60; named after David Douglas (1798-1834), Scottish botanist and traveler in America ]