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Olneya tesota is a perennial flowering tree of the family Fabaceae, legumes (peas, beans, etc.), which is commonly known as ironwood, desert ironwood, or palo fierro in Spanish. It is the only species in the monotypic genus Olneya. This tree is part of the western Sonoran Desert in Mexico and United States.
The species is native to the Southwestern United States and extreme northwestern Mexico in the Baja California Peninsula and the Sonoran Desert. Within Mexico its range includes the states of Baja California Sur and Baja California, on the Gulf of California side east of the cordillera ranges, and Sonora state west of the Sierra Madre Occidental cordillera, in the south approaching the northern border of northern Sinaloa state. In the Southwestern US its range includes the Colorado Desert of southeast Southern California, a part of the Sonoran Desert, and western and southern Arizona. Olneya does not range into the higher-elevation, colder, southeast of Arizona's Sonoran Desert region, nor into the sky islands of the Madrean Sky Islands region.
The seeds can be eaten by first being roasted.
Text excerpted from the Wikipedia article Olneya by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
