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Cirsium scopulorum

Family: asteraceae
Common name(s): Alpine Thistle; Mountain Thistle
Hardiness ratings: USDA zone 4

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup
• Dave's Garden. Search the extensive PlantFiles database.

Links for Cirsium scopulorum

• Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 4) (4 photos)
• Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (1 photo)
• Southwest Colorado Wildflowers - Photos and botanical information about the species/genus. (11 photos). Also a page for another instance.