bull thistle boar thistle spear thistle Cirsium vulgare Cirsium lanceolatum
bull_thistle%1:20:00:: boar_thistle%1:20:00:: spear_thistle%1:20:00:: cirsium_vulgare%1:20:00:: cirsium_lanceolatum%1:20:00::
cirsium vulgare
European thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States