> Centaurea benedicta, known by the common names St. Benedict's thistle, blessed thistle, holly thistle and spotted thistle, is a thistle-like plant in the family Asteraceae, native to the Mediterranean region, [...]. It is known in other parts of the world, including parts of North America, as an introduced species and often a noxious weed.
Cnicin: https://en.wikipedia.org/wiki/Cnicin
Cnicus -> Centaurea (Asteraceae) https://en.wikipedia.org/wiki/Centaurea
Centaurea benedicta: https://en.wikipedia.org/wiki/Centaurea_benedicta :
> Centaurea benedicta, known by the common names St. Benedict's thistle, blessed thistle, holly thistle and spotted thistle, is a thistle-like plant in the family Asteraceae, native to the Mediterranean region, [...]. It is known in other parts of the world, including parts of North America, as an introduced species and often a noxious weed.