Invasive Plants of Theodore Roosevelt National Park
Musk Thistle
Carduus nutans, with the common names Musk thistle, Nodding thistle, and Nodding plumeless thistle, is a biennial herb in the Asteraceae—sunflower family. It is native to regions of Europe and Asia....
Creeping Thistle
Cirsium arvense is a species of Cirsium, native throughout Europe and northern Asia, and widely introduced elsewhere. The standard English name in its native area is Creeping Thistle.
