Editing Pinus jeffreyi (section)

==Distribution and habitat==
''Pinus jeffreyi'' occurs from southwest [[Oregon]] south through much of [[California]] (mainly on the [[Eastern Sierra|eastern side]] of the [[Sierra Nevada (U.S.)|Sierra Nevada]]), to northern [[Baja California]] in Mexico. It is a high-altitude species; in the north of its range, it grows widely at {{convert|1500|to|2100|m|abbr=on}} altitude, and at {{convert|1800|to|2900|m|abbr=on}} in the south of its range.<ref name="silvics">{{Silvics |first=James L. |last=Jenkinson |volume=1 |genus=Pinus |species=jeffreyi}}</ref>

''Pinus jeffreyi'' is more stress tolerant than ''P.&nbsp;ponderosa''. At higher elevations, on poorer soils, in colder climates, and in drier climates, ''P.&nbsp;jeffreyi'' replaces ''P.&nbsp;ponderosa'' as the dominant tree.<ref name=NRVYP/> ''Pinus jeffreyi'' is also tolerant of [[serpentine soil]]s and is often dominant in these conditions, even on dry sites at fairly low altitudes.<ref name="silvics"/>

[[File:Jeffrey pine Siskiyou Wilderness.jpg|thumb|upright=1.8|''Pinus jeffreyi'' in the [[Siskiyou Mountains]] of northwest California, growing on [[Serpentine subgroup|serpentine]]]]