Common name(s) generally applied to other taxa or multiple taxa | field thistle, field-thistle, common field thistle, common thistle, common pasture thistle, pasture thistle, pasture-thistle, green thistle, roadside thistle, roadside-thistle, elk thistle are applied to multiple Cirsium taxa; bank thistle, bank-thistle, buck thistle, buck-thistle, boar thistle, boar-thistle, spear thistle, spear-thistle, spearthistle, burr thistle, burr-thistle, bur thistle, bur-thistle, horse thistle, horse-thistle, noxious thistle, wild artichoke are applied to multiple Asteraceae taxa; English thistle, fuller's thistle, blue thistle, blue-thistle, bluethistle are applied to taxa in multiple families; milk thistle is more commonly applied to Silybum marianum; Scotch thistle, Scottish thistle are more commonly applied to Onopordum acanthium |