Petradoria is a genus of North American subshrubs in the aster tribe within the daisy family. Species The only known species is Petradoria pumila, known by the common name rock goldenrod. It is native to the western United States (California, Arizona, Nevada, Utah, New Mexico, Colorado, Wyoming, Idaho). It is quite common in some regions, carpeting areas in yellow blooms. Formerly included Petradoria discoidea L.C.Anderson - Cuniculotinus gramineus (H.M.Hall) Urbatsch, R.P.Roberts & Neubig