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Range map of ponderosa pine. Ponderosa pine forest is the largest western forest type in the United States. [2] Ponderosa pine is the principal species on over 110,000 km 2 (27,000,000 acres) and is present on an additional 55,000 km 2 (14,000,000 acres).
The maritime coast range ponderosa pine forests, also known as ponderosa sand parklands and ponderosa pine sandhills, are a rare temperate forest community consisting of open stands of a disjunct population of ponderosa pine growing on sandy soils in the Santa Cruz Mountains of north central coastal California.
Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
The forest contains continuous stands of ponderosa pine, Jeffrey pine, Douglas fir, red fir, white fir, lodgepole pine, Baker Cypress (Cupressus bakeri), and incense cedar. Old growth forest is estimated to cover some 168,000 acres (680 km 2) of forest land. [2] Forest headquarters are located in Yreka, California.
Pinus muricata forest growing at Point Reyes, California. 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).
As elevation increases, forests of ponderosa pine, white and red firs, incense cedar, and aspen give way to lodgepole and western white pines sprinkle towards the summit. Some 43,400 acres (176 km 2) of the forest have been identified as old growth, with lodgepole pine, ponderosa pine, white fir, incense cedar, and red fir being common ...
Ponderosa pine-dominated forests ("Ponderosa pine forest") occur at elevations from about 300 to 2,100 m (980 to 6,890 ft). Jeffrey pine-dominated forests occur mostly in California , from 1,500 to 2,400 m (4,900 to 7,900 ft) in the north, and 1,700 to 2,800 m (5,600 to 9,200 ft) in the south.
These isolated groves may include Ponderosa pine, Douglas fir, and knobcone pine. Notably, the highest slopes of the Santa Lucias contain small patches of Sierran Conifer forest, including incense cedar, and ponderosa, Jeffrey, and sugar pines. Steep rocky slopes harbor the endemic Santa Lucia Fir, the rarest species of fir on earth.