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Jeffrey Pine

The Pinus Jeffreyi is commonly known as Jeffrey Pine,

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Growing Regions

Jeffrey pine is distributed primarily in eastern California.  It extends north through the Klamath Mountains into southwestern Oregon, across the Sierra Nevada into western Nevada, and south to the Transverse and Peninsular Ranges and into northern Baja California [16,21].  

     

General Information

The currently accepted scientific name of Jeffrey pine is Pinus jeffreyi Grev. and Balf. [41]. There are no recognized subspecies, varieties, or forms.

Jeffrey pine typically occurs in pure stands along the eastern slope of
the Sierra Nevada.  In the northern Sierra Nevada and into the southern
Cascade Range, it forms more mixed stands with Washoe Pine (Pinus
washoensis), ponderosa pine (P. ponderosa), incense cedar (Calocedrus
decurrens), white fir (Abies concolor), and western juniper (Juniperus
occidentalis).  Common understory associates in mixed stands include
shinyleaf ceanothus (ceanothus velutinus), greenleaf manzanita
(Arctostaphylos patula), curlleaf mountain-mahogany (Cercocarpus ledifolius),
and bitterbrush (Purshia tridentata) [1,2,19,33].

Publications listing Jeffrey pine as an indicator or dominant species in
plant associations (pas) and vegetation types (vts) are as follows:

 Area          Classification              Authority
 ----          --------------              ---------
 s CA           forest (pas)               Paysen & others 1980
 s CA           forest (vts)               Horton 1960
sw OR           forest (pas)               Atzet & Wheeler 1984
 s OR           forest (pas)               Atzet & McCrimmon 1990
 

Much of the information presented here is attributed to:
Habeck, R. J. 1992. Pinus jeffreyi. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available at USDA Forest Service.

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