Native to the western United States, and found in the dry, arid environments from California east to New Mexico, and south into Mexico.
An annual that reproduces from seeds. Plants are well adapted to dry, compacted soils and are found most often in arid environments. Growth habit is sprawling to slightly erect.
Mature plants have stems that may grow outward from the center to over a foot in length, with multiple branching stems arising from the base of the plant. Leaves and stems are covered with short, stiff hairs, with the small leaves generally scattered along the stems. The flower head resembles an un-curling coil at the ends of the stems, with older flowers producing seeds below the extending head.
Characteristicts Important to Control:
Physical removal of small infestations, or a contact of systemic herbicide where needed.