Taxa: Cirsium scariosum (Cirsium butleri, Cirsium congdonii, Cirsium erosum, Cirsium kelseyi, Cirsium lacerum, Cirsium magnificum, Cirsium minganense, Cirsium oreophilum, Cirsium x erosum), Cirsium scariosum var. citrinum, Cirsium scariosum var. coloradense, Cirsium scariosum var. congdonii, Cirsium scari
... (show all)osum var. scariosum, Cirsium scariosum var. thorneae, Cirsium scariosum var. americanum, Cirsium scariosum var. toiyabense