Kingdom Plantae Family Asteraceae Tribe Cynareae Rank Species | Order Asterales Subfamily Carduoideae Genus Cirsium | |
Similar Cirsium douglasii, Cirsium andrewsii, Cirsium perplexans, Cirsium rhothophilum, Cirsium remotifolium | ||
Cirsium brevifolium is a North American species of plants in the thistle tribe within the sunflower family. Common name is Palouse thistle . The species is native to the northwestern United States, in the States of Washington, Oregon, and Idaho. The plant is particularly common in the Palouse Prairie near Pullman, Washington.
Cirsium brevifolium is a perennial herb up to 120 cm (4 feet) tall, with a large taproot. Leaves have spines along the edge. Sometimes there is only one flower head, sometimes a few but not many, with creamy white or pale lavender disc florets but no ray florets.
References
Cirsium brevifolium Wikipedia(Text) CC BY-SA