A short-lived evergreen, deciduous leafy bush, growing 2 to 5 feet tall and wide. The herbaceous bush has leaves that are triangular greenish-gray to silvery and produce a substance, toxic to other plants in the proximity. Flowers are yellow and daisy like blooming mostly from March to June. The fragrant woody bush prefers dry gravelly slopes to open sandy washes. It is a poor forage that reproduces easily from seeds and cuttings. Occurs in the desert areas of the Southwestern United States.