noun
tall symmetrical pine of western North America having long blue-green needles in bunches of 3 and elongated cones on spreading somewhat pendulous branches; sometimes classified as a variety of ponderosa pine
• Syn: ↑Jeffrey's pine, ↑black pine, ↑Pinus jeffreyi
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a conifer, Pinus jeffreyi, of high mountains in the western U.S., having long needles, large cones, and aromatic bark.
[1855-60, Amer.; after John Jeffrey (1826-54), Scottish gardener, who collected plants in the Pacific Northwest, 1850-54]
Useful english dictionary. 2012.