Compositae source details
Daniels, Fl. Boulder Colorado
314512
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Cirsium coloradense (Rydb.) Cockerell accepted as Cirsium scariosum var. coloradense (Rydb.) D.J.Keil (original description)
Cirsium scopulorum (Greene) Cockerell accepted as Cirsium eatonii var. eriocephalum (A.Gray) D.J.Keil (original description)
Cirsium scopulorum (Greene) Cockerell accepted as Cirsium eatonii var. eriocephalum (A.Gray) D.J.Keil (original description)
