Gutierrezia petradoria is a species of flowering plant in the family Asteraceae known by the common names San Pedro snakeweed and goldenrod snakeweed[1]
The plant is endemic to western Utah, located the Southwestern United States.[2] It is native to the Lower Sevier River watershed, within Juab County and Millard County.[3]
Gutierrezia petradoria is a perennial herb to woody subshrub, growing up to 40cm (20inches) in height.
At the end of each branch there is an inflorescence of one or a few flower heads. The heads are larger than for most of the species in the genus. The head contains 5-13 disc florets with 4-10 yellow ray florets around the edge. The ray flowers are up to 10mm long, much larger and showier than in the case of most other species in the genus.[4]
