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Pinus jeffreyi occurs from southwest Oregon south through much of California (mainly on the eastern side of the Sierra Nevada), to northern Baja California in Mexico. It is a high-altitude species; in the north of its range, it grows widely at 1,500 to 2,100 m (4,900 to 6,900 ft) altitude, and at 1,800 to 2,900 m (5,900 to 9,500 ft) in the south of its range.
The Pinus sabiniana tree typically grows to 36–45 feet (11–14 m), but can reach 105 feet (32 m) feet in height. The needles of the pine are in fascicles (bundles) of three, distinctively pale gray-green, sparse and drooping, and grow to 20–30 cm (8–12 inches) in length.
Of California's total plant population, 2,153 species, subspecies, and varieties are endemic and native to California alone, according to the 1993 Jepson Manual study. [4] This botanical diversity stems not only from the size of the state, but also its diverse topographies , climates, and soils (e.g. serpentine outcrops ).
Pinus, the pines, is a genus of approximately 111 extant tree and shrub species. The genus is currently split into two subgenera: subgenus Pinus (hard pines), and subgenus Strobus (soft pines). Each of the subgenera have been further divided into sections based on chloroplast DNA sequencing [1] and whole plastid genomic analysis. [2]
Cuscuta pacifica var. papillata, a parasitic plant found only in the salt marshes of Mendocino county; Eriogonum kelloggii, a species of buckwheat found only on Red Mountain near Leggett; Harmonia guggolziorum, a flowering aster found in two locations near Hopland; Limnanthes bakeri, a meadowfarm plant known in only 20 locations near Willits
A dendrochronology, based on these trees and other bristlecone pine samples, extends back to about 9000 BC, albeit with a single gap of about 500 years. [20] [3] An older bristlecone pine was reportedly discovered by Tom Harlan in 2009, based on a sample core collected in 1957. According to Harlan, the tree was 5,062 years old and still living ...
Which Southern California native plants survived climate change and mass extinctions 13,000 years ago and still live today? La Brea Tar Pits researchers compiled a list.
ancient bristlecone pine; Methuselah pine; long-lived pine Pinaceae (pine family) 142 Pinus luchuensis: Luchu pine Pinaceae (pine family) Pinus lumholtzii: Lumholtz's weeping pine Pinaceae (pine family) Pinus luzmariae: three-needled egg-cone pine Pinaceae (pine family) Pinus maestrensis: Sierra Maestra pine Pinaceae (pine family) Pinus massoniana