Scolymus hispanicus

Scolymus hispanicus_C030-14
Photo: UC Davis Weeds of California

Common names: goldenthistle

Scolymus hispanicus (goldenthistle) is a herb/ (family Asteraceae) with yellow flowers and spiny narrow leaves found in the central western ranges of California. It is native to Europe. It grows in grasslands. It propagates by seed. The spiny seed heads can get caught in wool, carried by wind and spread by agricultural equipment.

Cal-IPC Rating: Watch

CDFA Rating: -*?


Plant Risk Assessment - An evaluation of the potential for a plant to be invasive in California.

Weed Management Notes

No Weed RIC Management Notes are available for this species. Check for information on other species in the genus on the Weed RIC site.

Cal-IPC Newsletter Articles

There are no newsletter articles associated with this species yet.

Cal-IPC Symposium Presentations

Presentations are linked where available. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive.

There are no Symposium presentations associated with this species yet.

Other Scolymus hispanicus Information

  • CalPhotos - Images of plants taken mostly in California.
  • Calflora - Distribution map and records of this species in California.
  • CalWeedMapper - Distribution map of this species in California with ability to determine regional priorities.
  • EDDMapS - Distribution of this species in North America.
  • Jepson Interchange - Information on this plant's taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
  • USDA PLANTS Database - Information on identification and distribution, with links to websites in individual states.
  • Additional photos

    Scolymus hispanicus_leaf_copyright_CDFA
    Scolymus hispanicus (goldenthistle) leaf. Photo: &#169 CDFA
    Scolymus hispanicus_rosette_copyright_CDFA
    Scolymus hispanicus (goldenthistle) rosette. Photo: &#169 CDFA
    Scolymus hispanicus_growth habit (mature)_copyright_CDFA
    Scolymus hispanicus (goldenthistle) growth habit (mature). Photo: &#169 CDFA
    Scolymus hispanicus_flower heads_copyright_CDFA
    Scolymus hispanicus (goldenthistle) flower heads. Photo: &#169 CDFA