Carthamus lanatus

Carthamus lanatus is a species of thistle known as woolly distaff thistle, downy safflower or saffron thistle. It is closely related to safflower (Carthamus tinctorius). This annual plant is a native of the Mediterranean Basin, but it is familiar in other places where it was introduced and has become a noxious weed, such as in parts of North America and southern Australia with similar climates.