Ambrosia ambrosioides, also known as canyon ragweed or chicura, is a ragweed found in the deserts of northern Mexico (Baja California, Baja California Sur, Chihuahua, Durango, Sonora), Arizona, and California (Ventura + San Diego Counties).

It is monoecious, with both terminal and axillary racemes consisting of staminate heads occurring above their pistillate counterparts.

[2] This ragweed can be found in sandy washes and other disturbed areas such as roadsides, and is sometimes seen growing in rock crevices.

[2] The Seri people smoked its dried leaves, and used the roots to make medicinal teas and pigments.

[6] This species is host to the following insect induced galls: external link to gallformers