Sonchus arvensis subsp. laevipes W.D.J.Koch Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Asterales family Asteraceae genus Sonchus species Sonchus brachyotus Name Homonyms Sonchus arvensis var. laevipes W.D.J.Koch Sonchus arvensis var. laevipes Boiss., 1875 Sonchus arvensis var. laevipes Gren. & Godr. Sonchus arvensis var. laevipes (W.D.J.Koch) Hiitonen Sonchus arvensis subsp. laevipes W.D.J.Koch Sonchus arvensis f. laevipes (W.D.J.Koch) Werner Christ.