Nevada, Utah and north Arizona, plus small areas of east California and southeast Oregon
Between 2 and 6 inches
Sandy or rocky locations; sagebrush plateaus, pinyon-juniper woodland, roadsides
Up to 2 inches long, obovate or spatulate
Physaria chambersii is a small plant, its flowers growing on short stems that recline close to the ground. Basal leaves, below the flower stalks, are quite large, ovate or spoon-shaped, while those at the center of the rosette and along the stalks are much smaller. The small yellow flowers have four petals at right angles, with a small cluster of stamens in the middle, protruding slightly. The common name twinpod describes the fruit, which is divided into two sections, each containing four seeds.