Ambrosia salsola,[3] commonly called cheesebush, winged ragweed, burrobush,[4] white burrobrush,[citation needed] and desert pearl,[citation needed] is a species of perennial shrub in the family Asteraceae native to deserts of the southwestern United States and northwestern Mexico.

[5] This species, notable for its foul smell, easily hybridizes with the white bur-sage (Ambrosia dumosa).

[5] It is common on sandy desert flats, desert dry washes, and is weedy in disturbed sites in creosote bush scrub, shadscale scrub, Joshua tree woodland, and Pinyon juniper woodland, ranging from Inyo County, California, to northwestern Mexico.

[5] It drops about half of its leaves and some of its twigs in hot, dry summer conditions (drought deciduous).

[9][10][11] The foliage and stem tips have a foul, pungent, cheese-like scent when crushed, a trait which gives the plant the common name "cheesebush".