Petradoria sp.
Family: Asteraceae · Type: Annual · Native
Petradoria sp. is a native California annual in the Asteraceae family.
How to tell it apart
vs Solidago: Petradoria has phyllaries in vertical ranks on desert limestone; Solidago has overlapping phyllaries in various habitats.; vs Xanthisma: Petradoria has shingle-like phyllaries in vertical columns; Xanthisma has standard overlapping phyllaries.; vs Tonestus: Petradoria restricted to desert limestone with vertical-ranked phyllaries; Tonestus in alpine areas with overlapping phyllaries.; vs Pyrrocoma: Petradoria is desert-only with phyllaries in vertical ranks; Pyrrocoma grows in alpine areas with angled fruits.; vs Euthamia: Petradoria has vertical-ranked phyllaries in deserts; Euthamia has flat-topped clusters in wetlands.
Frequently asked questions
Is Petradoria sp. native to California?
Yes. Petradoria sp. is native to California (recorded as native).
What plant family does Petradoria sp. belong to?
Petradoria sp. is in the Asteraceae family, genus Petradoria.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-04-14
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.