cirsium vulgare(n = noun.plant) boar thistle, bull thistle, cirsium lanceolatum, spear thistle - European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States;
is a kind of plume thistle, plumed thistle

arisarum vulgare, cirsium, cirsium arvense, cirsium discolor, cirsium eriophorum, cirsium flodmanii, cirsium helenioides, cirsium heterophylum, cirsium lanceolatum, cirsium rivulare, clinopodium vulgare, echium vulgare, foeniculum vulgare, foeniculum vulgare dulce, genus cirsium, hordeum vulgare, leucanthemum vulgare, ligustrum vulgare, marrubium vulgare, origanum vulgare, polypodium vulgare, sorghum vulgare caudatum, sorghum vulgare rosburghii, sorghum vulgare technicum, tanacetum vulgare