Observed by Anthony at the Oliver Nature Park Spring Bioblitz!
Field Thistle, basal rosette
St Olaf Natural Lands
Local name = Wavy-leaf thistle. Common thistle with white-to-lavender flowers and gray-green foliage.
Cirsium is a genus of perennial and biennial flowering plants in the Asteraceae, one of several genera known commonly as thistles. They are more accurately known as Plume thistles. These differ from other thistle genera (Carduus, Silybum and Onopordum) in having feathered hairs to their achenes. The other genera have a pappus of simple unbranched hair.