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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.
The bristlecone pine has an intrinsically low rate of reproduction and regeneration, and it is thought that under present climatic and environmental conditions the rate of regeneration may be insufficient to sustain its population. [10] The species are on the International Union for Conservation of Nature (IUCN) red list. [10]
Pinus lambertiana (commonly known as the sugar pine or sugar cone pine) is the tallest and most massive pine tree and has the longest cones of any conifer.It is native to coastal and inland mountain areas along the Pacific coast of North America, as far north as Oregon and as far south as Baja California in Mexico.
Genetic differentiation in the pinyon pine has been observed associated to insect herbivory and environmental stress. [5] [6] There are eight species of true pinyon (Pinus subsection Cembroides): [7] Pinus cembroides – Mexican pinyon; Pinus orizabensis – Orizaba pinyon; Pinus johannis – Johann's pinyon (includes P. discolor – border pinyon)
The Pinaceae (/ p ɪ ˈ n eɪ s iː ˌ iː,-s i ˌ aɪ /), or pine family, are conifer trees or shrubs, including many of the well-known conifers of commercial importance such as cedars, firs, hemlocks, piñons, larches, pines and spruces.
Other products of economic value include resin, bark for tannin extraction, and empty pine cone shells for fuel. Pinus pinea is also currently widely cultivated around the Mediterranean for environmental protection such as consolidation of coastal dunes , soil conservation and protection of coastal agricultural crops.
Coulter pine (Pinus coulteri), or big-cone pine, is a conifer in the genus Pinus of the family Pinaceae.Coulter pine is an evergreen conifer that lives up to 100 years. [2] It is a native of the coastal mountains of Southern California in the United States and northern Baja California in Mexico, occurring in mediterranean climates, where winter rains are infrequent and summers are dry with ...
Pinus rigida, the pitch pine, [2] [3] is a small-to-medium-sized pine.It is native to eastern North America, primarily from central Maine south to Georgia and as far west as Kentucky.