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P. Spinosus is native to the desert washes in the Colorado Desert in Southern California, the Sonoran Desert in western Arizona, and most of eastern Baja California state including several northern Gulf of California (Sea of Cortez) islands, [1] The tree is common in Joshua Tree National Park, where it is called the smoketree.
Northwest Arizona transitions to the lower elevation Mojave Desert of southern California, Nevada and Utah, with an indicator species of Joshua trees and other species, and southwestwards regions of the Sonoran Desert, along the Lower Colorado River Valley; in Arizona's south, all of central and eastern desert Sonoran Desert regions merge ...
The Sonoran Desert region includes the Sonoran Desert and some surrounding areas. All of Sonora, the Baja California Peninsula, and the islands of the Gulf of California are included. Also included are parts of Sinaloa and Chihuahua, some Pacific islands off the coast of Baja California excluding Guadalupe Island), and southern Arizona and ...
[1]: 2–3 The flora of the Colorado Desert are influenced by the environment of the very dry and hot lower areas of the Colorado River valley, which may be barren, treeless, and generally have no large cacti. [1]: 3 Flora of the Arizona Upland are comparatively lush, with trees and large columnar cacti that can withstand winter frosts.
The Sonoran Desert is home to the cultures of over 17 contemporary Native American tribes, with settlements at American Indian reservations in California and Arizona, as well as populations in Mexico. The largest city in the Sonoran Desert is Phoenix, Arizona, with a 2017 metropolitan population of about 4.7 million. [15]
Lower Sonoran (low, hot desert): creosote bush, Joshua tree; Upper Sonoran (desert steppe or chaparral): sagebrush, scrub oak, Colorado pinyon, Utah juniper; Transition (open woodlands): ponderosa pine; Canadian (fir forest): Rocky Mountain Douglas fir, quaking aspen; Hudsonian (spruce forest): Engelmann spruce, Rocky Mountains bristlecone pine
It is found in the Californian Mojave Desert and Colorado Desert, south into the Sonoran Desert in the Mexican state of Sonora, east past the Sierra Nevada into the Nevada Great Basin Desert, and west into the San Bernardino Mountains of Southern California. [1] [2] Also found in northwest Arizona in the Joshua Tree National Forest.
The low desert of southeastern California is part of the Sonoran Desert ecoregion, which extends into Arizona and parts of northern Mexico. [2] California has two high deserts: the Mojave Desert and the Great Basin Desert. The Mojave Desert ecoregion is marked by the presence of Joshua trees. [3]