is found in the Mojave Desert and adjacent lands, in a range of habitats. Flowers have four, widely ovate yellow petals, non-overlapping when fully open, and about a third of an inch long. At the center are eight yellow stamens, of unequal lengths, with transverse anthers, and a longer yellow style topped by a spherical stigma. Flowers are attached by hairless pedicels of up to one inch.
Stems are slender, light green in color, and branch freely, generally above the middle. Leaves grow around the base, in a rosette; they are pinnately divided into opposite pairs of toothed, ovate to lance-shaped lobes, and a larger terminal lobe. The lower portion of the stem is sparsely covered with short, spreading hairs. Fruits are narrow, green, cylindrical pods, held at about 90 degrees from the stem.