cirsium heterophylum(n = noun.plant) cirsium helenioides, melancholy thistle - perennial stoloniferous thistle of northern Europe with lanceolate basal leaves and usually solitary heads of reddish-purple flowers;
is a kind of thistle

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