Western white pine series
Section: tree Series Dominated by Trees
Series formation: 
Series height:<70 m
Series canopy cover:io
Series ground layer:sa
Elevation range (lower):200
(upper):   2300
Wetland information:[not available]
Upland information: Uplands:all slopes, but most extensive on plateaus and upper slopes; raised stream benches and terraces. Soils granitic or ultra-mafic-derived. The national inventory of wetland plants (Reed 1988) lists western white pine as a FACU.
Reference:Western white pine range in CA (Griffin & Critchfield 1972); silvics (Graham 1990). Boyd (1980b), Kruckeberg (1984), Sawyer & Thorn-burgh (19
Comments:Western white pine grows in a wide range of mountain settings. It is also a common secondary species in several series. At elevations as low as 200 m in Del Norte Co. w. l-KlaR, western white pine dominates self-replacing stands on deep, partially serpe tinized peridotite (Duebendorfer 1987). This vegetation was first described by Whittaker (1960) as the shrubland half of a patchy mosaic that includes Jeffrey pine woodland [ see Jeffrey pine series]. Duebendorfer (1987) concluded that the mosaic is caused by soil differences. This shrubland grows on western white pine forest sites disturbed by fire and white pine rust. On relatively undisturbed sites, western white pine shares the canopy with Douglas-fir, knobcone pine, and lodgepole pine. In many areas he "Del Norte race" of Pinus contorta is common (Griffin & Critchfield 1972). These stands are being affected by white pine blister rust during the 1990s drought. Western white pine may be an important component of the Foxtail pine series and may dominate on ultramafic or granitic-derived soils (Sawyer & Thornburgh 1977b) in su-KlaR, Keeler-Wolf (1991b) at Mountaineer Creek candidate RNA in Tulare Co. su-SN.
Plot based descriptions:Keeler-Wolf (1986a) in Keeler-Wolf (1990e) defines one association at L. E. Horton candidate RNA, Duebendorfer (1987) two associations at nearby Pine Flat Mountain in Del Norte Co., Simpson (19 80) one association in s. Siskiyou Mountains in Humboldt Co., Sawyer & Thornburgh (1977b) one association, Whipple & Cope (1979) in Keeler-Wolf (1990e) one association at Mount Eddy candidate RNA in Siskiyou Co. KlaR; Talley (1977) in Keeler-Wolf (1990e) describes stands at Babbitt Peak RNA in Sierra Co. su-SN.
Series Association:Duebendorfer (1987): Western white pine/bush tanoak association [as Western white pine shrubland, = Dwarf forest (Keeler-Wolf 1986a)]. Sawyer & Thornburgh (1977b): Western white pine/ocean spray association. Simpson (1980): Pine/bear-grass association. Whipple & Cope (1979); Western white pine/angelica association.
FormationMixed needle-leafed evergreen-cold deciduous forest
Geographical associated regions: View Regions for: Western white pine series
Representative Image: View Representative Photograph for: Western white pine series
Common species: View common species for: Western white pine series

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