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Taxonomy
- Taxonomic Rank
- Species
- Author
- Nutt.
- Publication
- Trans. Amer. Philos. Soc. , ser. 2, 7: 420 (1841)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Asterales
- Family
- Asteraceae
- Subfamily
- Carduoideae
- Tribe
- Cardueae
- Subtribe
- Carduinae
- Genus
- Cirsium
Inferior Taxa
Cirsium scariosum var. congdonii Cirsium scariosum var. coloradense Cirsium scariosum var. toiyabense Cirsium scariosum var. americanum Cirsium scariosum var. scariosum Cirsium scariosum var. citrinum Cirsium scariosum var. robustum Cirsium scariosum var. thorneae
Synonyms
Carduus americanus Carduus americanus var. americanus Cirsium butleri Carduus scariosus Cirsium magnificum Cirsium drummondii var. vexans Cirsium minganense f. album Cirsium lacerum Cirsium hookerianum var. scariosum Cnicus scariosus