Petradoria is a genus of North American subshrubs in the tribe Astereae within the family Asteraceae.Greene, Edward Lee. 1895. Erythea 3(1): 13 entirely in EnglishTropicos, Petradoria Greene
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).Biota of North America Program 2013 county distribution map It is quite common in some regions, carpeting areas in yellow blooms.Flora of North America, Vol. 20 Page 171, Rock goldenrod, Petradoria Greene, Erythea. 3: 13. 1895. Flann, C (ed) 2009+ Global Compositae Checklist
Formerly included Petradoria discoidea L.C.Anderson - Cuniculotinus gramineus (H.M.Hall) Urbatsch, R.P.Roberts & Neubig
Subspecies Petradoria pumila subsp. pumila Petradoria pumila subsp. graminea (Wooton & Standl.) L.C.Anderson
References
External links Jepson Manual Treatment: ssp. pumila USDA Plants Profile Southwest Colorado Wildflowers