''Petradoria'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

North American North America is a continent in the Northern and Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the sou ...

subshrubs A subshrub (Latin ''suffrutex'') or undershrub is either a small shrub (e.g. prostrate shrubs) or a perennial that is largely herbaceous but slightly woody plant, woody at the base (e.g. garden pink and florist's chrysanthemum). The term is ofte ...

in the tribe

Astereae Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. They are found primarily in temperate regions of the world. Plants within the tribe are present nearly worldwide di ...

within the family

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

. ;Species The only known species is ''Petradoria pumila'', known by the common name rock goldenrod. It is native to the western

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

(

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

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Nevada Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...

Utah Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...

New Mexico New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...

Colorado Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...

Wyoming Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...

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). 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.
/ref>Flann, C (ed) 2009+ Global Compositae Checklist
;Formerly included '' Petradoria discoidea'' L.C.Anderson - ''

Cuniculotinus gramineus ''Cuniculotinus'' is a genus of flowering plants in the family Asteraceae. Species There is only one known species, ''Cuniculotinus gramineus''. It is native to the Great Basin deserts of California in Inyo County; and of southern Nevada in Ny ...

'' (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
* Astereae Flora of the Western United States Monotypic Asteraceae genera Flora without expected TNC conservation status {{Astereae-stub