Carduus tenuiflorus

Carduus tenuiflorus, known variously as slender-flower thistle, sheep thistle, shore thistle, slender thistle, winged plumeless thistle, winged slender thistle, and winged thistle) is a species of thistle.

It is native to Europe and North Africa. It is well-known on other continents, where it is an introduced species and noxious weed.