Cirsium foliosum

Cirsium foliosum
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Carduoideae
Tribe:	Cynareae
Genus:	Cirsium
Species:	C. foliosum
Binomial name
Cirsium foliosum (Hook.) DC.
Synonyms[1]
Carduus foliosus Hook. Cnicus foliosus A.Gray

Cirsium foliosum , called Leafy thistle or foliose thistle or elk thistle , is a North American species of plants in the thistle tribe within the sunflower family. The species is native to Alaska, Yukon, Northwest Territories, Alberta, British Columbia, and Wyoming.^[2]

Cirsium foliosum is a biennial or perennial herb up to 70 cm (28 inches) tall, blooming only once before dying. Leaves have thin spines along the edges. There is several flowering heads per plant, with white or pale pink disc florets but no ray florets.^[3]

References

1. The Plant List, Cirsium foliosum (Hook.) DC.
2. Biota of North America Program, 2014 state-level distribution map
3. Leafy or foliose or elk thistle, Flora of North America, Cirsium foliosum (Hook.) DC.