cirsium rivulare(n = noun.plant) brook thistle - of central and southwestern Europe;
is a kind of plume thistle, plumed thistle

cirsium, cirsium arvense, cirsium discolor, cirsium eriophorum, cirsium flodmanii, cirsium helenioides, cirsium heterophylum, cirsium lanceolatum, cirsium vulgare, genus cirsium