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・ Jeffrey P. von Arx
・ Jeffrey Paine
・ Jeffrey Parsons
・ Jeffrey Pasley
・ Jeffrey Paul Hillelson
・ Jeffrey Paul Smith
・ Jeffrey Pearlman
・ Jeffrey Pelehac
・ Jeffrey Perkins
・ Jeffrey Perry
・ Jeffrey Perry (British actor)
・ Jeffrey Peterson
・ Jeffrey Pfeffer
・ Jeffrey Piccola
・ Jeffrey Pierce
Jeffrey pine
・ Jeffrey Plale
・ Jeffrey Pollack
・ Jeffrey Polnaja
・ Jeffrey Potter
・ Jeffrey Price
・ Jeffrey Price and Peter S. Seaman
・ Jeffrey Pugh
・ Jeffrey Pullicino Orlando
・ Jeffrey Quill
・ Jeffrey R. Cellars
・ Jeffrey R. Chadwick
・ Jeffrey R. Di Leo
・ Jeffrey R. Holland
・ Jeffrey R. Howard


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Jeffrey pine : ウィキペディア英語版
Jeffrey pine

Jeffrey pine, ''Pinus jeffreyi'', also known as Jeffrey's pine, yellow pine and black pine, is a North American pine tree. It is mainly found in California, but also in the westernmost part of Nevada, southwestern Oregon, and northern Baja California.〔Safford, H.D. 2013. Natural Range of Variation (NRV) for yellow pine and mixed conifer forests in the bioregional assessment area, including the Sierra Nevada, southern Cascades, and Modoc and Inyo National Forests. Unpublished report. USDA Forest Service, Pacific Southwest Region, Vallejo, CA, ()〕 It is named in honor of its botanist documenter John Jeffrey.
==Distribution and habitat==
Jeffrey pine occurs from southwest Oregon south through much of California (mainly in the Sierra Nevada), to northern Baja California in Mexico. It is a high-altitude species; in the north of its range, it grows widely at altitude, and at in the south of its range.
Jeffrey pine is tolerant of serpentine soils and is often dominant in these conditions, even on dry sites at fairly low altitudes.〔 On other soils, it only becomes dominant at higher altitudes where the usually faster-growing ponderosa pine (''Pinus ponderosa'') does not thrive. Jeffrey pine is more stress tolerant than the closely related Ponderosa pine (''Pinus ponderosa''). At higher elevations, on poorer soils, in colder climates, and in dryer climates, Jeffrey pine replaces ponderosa as the dominant tree.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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