Cirsium clavatum var. americanumVariety
Common Name(s)
- Rocky Mountain fringed thistle
- fringed thistle
- lacy thistle
- mountain slope thistle
- porcupine thistle
- crow thistle
- gray thistle
Synonyms
- Cirsium centaureae
- Cirsium griseum
- Cirsium scapanolepis
- Cirsium laterifolium
- Cirsium modestum
- Cirsium oreophilum
- Carduus spathulatus
- Cirsium spathulifolium