Classification
Plantae [rijk]Spermatopsida [klasse]
Asterales [orde]
Asteraceae [familie]
Carduus [geslacht]
Genus Carduus contains the following taxa:
Carduus acanthoides [species]
Carduus crispus [species]
Carduus nutans [species]
Carduus tenuiflorus [species]