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black pine, Jeffrey pine, Jeffrey's pine, Pinus jeffreyi | tall symmetrical pine of western North America having long blue-green needles in bunches of 3 and elongated cones on spreading somewhat pendulous branches; 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 ❲Pinus jeffreyi❳ |