Cirsium altissimum var. filipendulum (Engelm.) A.Gray Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Cirsium species Cirsium engelmannii Name Homonyms Cirsium altissimum var. filipendulum (Engelm.) A.Gray Cirsium altissimum subsp. filipendulum (Engelm.) A.Gray