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The weather of these forests is quite mild in both winter and summer. Temperatures rarely go below freezing or grow uncomfortably warm. Closed-cone pine forests of California are located in cool-summer Mediterranean climate regions along the coast with cool wet winters and hot, dry summers. Despite the fact that the summers are dry, the air is ...
The trees of Closed-cone pine forest burned in every 25–50 years, and a few species including the knobcone pine (Pinus attenuata) are adapted to open the cones and release seeds for new growth following the heat of forest fires. However, as fire regulation and suppression becomes more effective these communities cannot renew themselves.
Closed-cone conifer forests are found in small, scattered patches throughout the ecoregion, typically adjacent to maritime chaparral. Common pines are lodgepole pine ( Pinus contorta ), bishop pine ( Pinus muricata ), Monterey pine ( Pinus radiata ), and knobcone pine ( Pinus attenuata ).
The flora of this ecoregion also includes tree species such as gray or foothill pine (Pinus sabiniana), scrub oak (Quercus dumosa), California buckeye (Aesculus californica), the rare Gowen cypress (Cupressus goveniana), the rare Monterey cypress (Cupressus macrocarpa), and a wealth of endemic plant species, including the extremely rare San ...
Lodgepole and shore pine can be found intermingled (and apparently hybridized) north of Puget Sound. [8] Less dependent on fire, tamarack pine can be found in California's upper mountains and mingled with lodgepole in Oregon. [8] Pinus contorta can be found in the closed-cone pine forest of coastal California.
Once the pine cones are collected, they're brought to a network of nurseries, where the seeds are extracted and grown into seedlings. One million seedlings will plant about 4,500 acres of new forest.
A mosaic of different manzanita species and closed-cone pine forest appears at higher elevations. Bigcone Douglas-fir, Pseudotsuga macrocarpa, is a notable resident of some of these communities. The Mediterranean California Lower Montane Black Oak-Conifer Forest plant community occurs here.
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