welted thistle

English Thesaurus

1. European biennial introduced in North America having flower heads in crowded clusters at ends of branches (noun.plant)

hypernym	:	thistle,
definition	:	any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves (noun.plant)

member meronym	:	carduus, genus carduus,
definition	:	genus of annual or perennial Old World prickly thistles (noun.plant)