Carduus hookerianus var. eriocephalus (A.Gray) A.Nelson, syn of var. eriocephalum
Carduus scopulorum Greene, syn of var. eriocephalum
Cirsium eriocephalum A.Gray 1864 not Wallr. 1840, syn of var. eriocephalum
Cirsium hookerianum var. eriocephalum (A.Gray) A.Nelson, syn of var. eriocephalum
Cirsium scopulorum (Greene) Cockerell, syn of var. eriocephalum
Cirsium scopulorum (Greene) Cockerell ex Daniels, syn of var. eriocephalum
Cnicus eriocephalus A.Gray, syn of var. eriocephalum
Carduus hesperius A.Heller, syn of var. hesperium
Carduus hookerianus var. hesperius (Eastw.) A.Nelson, syn of var. hesperium
Cirsium hesperium (Eastw.) Petr., syn of var. hesperium
Cnicus hesperius Eastw., syn of var. hesperium
Carduus polyphyllus Rydb., syn of var. murdockii
Carduus tweedyi Rydb., syn of var. murdockii
Cirsium murdockii (S.L.Welsh) Cronquist, syn of var. murdockii
Cirsium polyphyllum (Rydb.) Petr., syn of var. murdockii
Cirsium tweedyi (Rydb.) Petr., syn of var. murdockii
Cirsium peckii L.F.Hend., syn of var. peckii
Cirsium eatonii, commonly known as Eaton's thistle or mountaintop thistle, is a North American species of flowering plants in the family Asteraceae.[2][3]
The species has been found in Idaho, Montana, New Mexico, Wyoming, Nevada, Utah and Colorado.[4]
^"Cirsium eatonii". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 11 March 2012.
^"Cirsium eatonii". Flora of North America. efloras.org. Retrieved 11 March 2012.
Cirsiumeatonii, commonly known as Eaton's thistle or mountaintop thistle, is a North American species of flowering plants in the family Asteraceae. The...
the mountaintop thistle C. eatonii was polyphyletic and therefore should be split. The species complex that was Cirsiumeatonii was split in 2020, re-instating...
Cirsium peckii, the Steens Mountain thistle, is a very spiny and prickly perennial plant in the family Asteraceae that grows in the Great Basin of the...
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