Cirsium pumilum f. hillii Dataset Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Cirsium species Cirsium pumilum Name Homonyms Cirsium pumilum var. hillii (Canby) B.Boivin Cirsium pumilum subsp. hillii (Canby) R.J.Moore & Frankton Cirsium pumilum f. hillii