Mount Tamalpais Thistle (Cirsium hydrophilum var. vaseyi)

Cirsium hydrophilum var. vaseyi is a species in the Cirsium genus. It is commonly known as Mount Tamalpais Thistle This name is accepted name for the species in the family Asteraceae subfamily Carduoideae, tribe Cynareae, subtribe Carduinae, . . This species is found in California.