Numerous; highly branched, stiff, 1-3 ft. tall and covered with wooly gray hair; NO wings
Alternate; mostly covered with wooly gray hair
Lower leaves 2-4 in. long with lobed to wavy edges (margins); upper leaves strap-like (linear) or lance-shaped and less than 1.2 in. long with smooth or toothed edges
Purple, pink or white, each located at the tip of a branch; base of flower is vase-shaped, 0.25-0.5 in. wide and covered with green bracts with papery or whitish edges
Creeping root system; upper roots often dark brown to black
Grows well on a broad range of sites; often found in rangeland, waste areas, roadsides and along waterways; known to occur in all Nevada counties
Perennial; reproduces by roots and seed
Causes "chewing disease" in horses by damaging the area of the brain that controls fine motor movements, particularly of the mouth; results in starvation or dehydration
Mowing and tillage are NOT effective
Apply glyphosate, chlorsulfuron or clopyralid from the bud to flower stage; aminopyralid or picloram from bud through dormancy; imazapic to dormant plants in fall