Synonyms
Cnicus quercetorum A.Gray
Cirsium quercetorum var. xerolepis Petr.
Carduus quercetorum (A.Gray) Greene
Cirsium quercetorum var. walkerianum (Petr.) Jeps.
Cirsium quercetorum var. mendocinum Petr.
Cirsium walkerianum Petr.
Cirsium quercetorum var. campylolepis Petr.