Up to 4 ft. tall with a woody base; highly branched; lacks hair (glabrous) and often rust colored with 2 ridges that run the length of the stem
Opposite, oval to strap-like (linear), prominent veins, less than 1 in. long, lack hair and no leaf stems (petioles); edges (margins) are smooth with the lower surface lined with small black dots
Surface covered with tiny transparent dots that can be seen by holding the leaf up to the light
0.75 in. diameter; 5 yellow petals that often have tiny black dots around the edges; many stamens; clustered at tips of branches
Stout taproot with spreading rhizomes
Grows best on coarse-textured, gravelly, well-drained soils; known to occur in Elko, Lyon and Washoe counties
Perennial; reproduces by seed and rhizomes
Ingestion causes skin irritation and weight loss in white-haired animals; sometimes cultivated as a crop and used for medicinal purposes (as an antidepressant)
Also known as Klamath weed
Mowing, grazing and burning are NOT effective; a biological control agent is available Apply 2,4-D, metsulfuron or picloram to actively growing plants prior to bloom