- plume thistle, plumed thistle - any of numerous biennial to perennial herbs with handsome purple or yellow or occasionally white flower heads
--1 is a kind of thistle
--1 is a member of Cirsium, genus Cirsium
--1 has particulars:Canada thistle, creeping thistle, Cirsium arvense; woolly thistle, Cirsium flodmanii; brook thistle, Cirsium rivulare; bull thistle, boar thistle, spear thistle, Cirsium vulgare, Cirsium lanceolatum