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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Cirsium pulcherrimum

Cirsium pulcherrimum (Rydb.) K. Schum.

Wyoming Thistle

Asteraceae (Aster Family)


USDA Symbol: CIPU3

USDA Native Status: L48 (N)


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 3 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: White , Pink , Purple
Bloom Time: Jun , Jul , Aug
Bloom Notes: No ray florets present, only disc florets.


USA: CO , NE , UT , WY

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Cirsium pulcherrimum in USDA Plants
FNA: Find Cirsium pulcherrimum in the Flora of North America (if available)
Google: Search Google for Cirsium pulcherrimum


Record Modified: 2018-12-11
Research By: CBR

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