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The knobcone pine, Pinus attenuata (also called Pinus tuberculata), [2] is a tree that grows in mild climates on poor soils. It ranges from the mountains of southern Oregon to Baja California with the greatest concentration in northern California and the Oregon-California border.
Arceuthobium siskiyouense is a species of dwarf mistletoe known as knobcone pine dwarf mistletoe. It is endemic to the Klamath Mountains of northern California and southern Oregon , where it lives as a parasite on knobcone pine trees.
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.
Pinus, the pines, is a genus of approximately 111 extant tree and shrub species. The genus is currently split into two subgenera: ... P. attenuata – knobcone pine;
Pines, such as ponderosa pine, Jeffrey pine, sugar pine, Coulter pine, lodgepole pine, single-leaf pinyon, and knobcone pine all thrive here. Other coniferous trees, such as white fir, bigcone Douglas-fir (Pseudotsuga macrocarpa), incense cedar, and western juniper also thrive here. Canyon live oak, California black oak, and Pacific dogwood are ...
The most widespread naturally of the closed-cone pines is bishop pine (Pinus muricata), which can be found along the coast from Humboldt County, California in the north to the northwestern corner of Baja California in the south. Knobcone pine (Pinus attenuata) forests can occur further inland, on dry, rocky soils.
Pinus x rigitaeda, Pinus rigida × P. taeda – Pitlolly pine (Pitch pine × loblolly pine) Pinus rigida × P. serotina – Pitch pine × pond pine; Pinus patula × P. greggii – Mexican weeping pine × Gregg pine; Pinus patula × P. radiata – Mexican weeping pine × Monterey pine; Pinus attenuata × P. radiata – KMX pine (Knobcone pine × ...
Pinus aristata - Rocky Mountains bristlecone pine; Pinus attenuata - Knobcone pine; Pinus balfouriana - Foxtail pine; Pinus contorta - Lodgepole pine; Pinus coulteri - Coulter pine; Pinus edulis - Colorado pinyon; Pinus flexilis - Limber pine; Pinus jeffreyi - Jeffrey pine; Pinus lambertiana - Sugar pine; Pinus longaeva - Great Basin ...