Taxonomy
- Taxonomic Rank
- Variety
- Author
- (Harv. & A.Gray) Jeps.
- Publication
- Man. Fl. Pl. Calif. : 1167 (1925)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Asterales
- Family
- Asteraceae
- Subfamily
- Carduoideae
- Tribe
- Cardueae
- Subtribe
- Carduinae
- Genus
- Cirsium
- Species
- Cirsium occidentale