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Sonoran Basin and Range
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† Status: ✓ = Complete ○ = Needs Image … = Incomplete ∅ = Stub Only
‡ This code refers to the US EPA's Level 4 ecoregion codes for the continental U.S., see here.
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↑About the Sonoran Basin and Range
The Sonoran Basin and Range is part of the Warm Deserts, and extends from the southeasternmost corner of California through much of southwestern Arizona, and, in Mexico, into southeastern Baja California, through much of Sonora and with a small discontinuous piece stretching into Sinaloa.This region consists of large, flat areas and scattered low mountains. It is hotter than the regions to the north. Winter rainfall is highest in the west, driven by storms moving in from the ocean, whereas summer rainfall is highest in the east, resulting from more southerly storms pushed north and inland as part of the North American monsoon.
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Warning! This region extends outside the continental US. We have only built range maps for the portion of plant ranges in the continental US; these lists and searches may thus have major omissions for species which only occur in the portion of this region outside the continental US.
↑References
1. Wiken, E., Griffith, G. "North American Terrestrial Ecoregions - Level III", Commission for Environmental Cooperation, (2011) Web.