Hymenoclea salsola
Encyclopedia
Hymenoclea salsola is a flowering plant in the daisy family
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...

 known by several common names, including white burrobrush, cheesebush, and desert pearl. It is native to the southwestern United States and northern Mexico, where it is a common plant of the local deserts, where it thrives on sandy soil, alkaline environments, and disturbed sites. . This is a perennial shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 which forms a sprawling bush up to eight feet high. It has thin branches and narrow, needlelike leaves. The foliage has a pungent cheese
Cheese
Cheese is a generic term for a diverse group of milk-based food products. Cheese is produced throughout the world in wide-ranging flavors, textures, and forms....

like scent when crushed, a trait which gives the plant the common name "cheesebush". It is covered in plentiful white or yellow flowers and then pearly, winged fruits in white, yellow, or pink. This species easily hybridizes with the common ragweed species Ambrosia dumosa
Ambrosia dumosa
Ambrosia dumosa, the burro-weed or white bursage, is a common constituent of the creosote-bush scrub community throughout the Mojave desert of California, Nevada, and Utah and the Sonoran Desert of Arizona and northwestern Mexico....

.

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