Origin: Introduced
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Silybum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Silybum checklist entry.
OregonFlora: Silybum information.
E-Flora BC: Silybum atlas page.
CalPhotos: Silybum photos.
USDA Plants: Silybum information.