Ambrosia monogyra, Burrobrush
White Sands Missile Range, New Mexico
September 21, 2019
This species is also known as Cheesebush and Singlewhorl Burrobrush. It was first described as Hymenoclea monogyra by Torrey and Asa Gray in 1849. As is typical of the species, this specimen was found on the bank of a wash in the San Andres Mountains. It is a species of the arid regions of North America, being found in California, Arizona, Texas, New Mexico, maybe in western Nevada, Baja California, Baja California Sur, Sonora, Sinaloa, and Chihuahua.
Specimen collected by E. O. Wooton on November 15, 1901 on
the mesa west of the Organ Mountains, Dona Ana County, New Mexico