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Wyoming Thistle

Cirsium pulcherrimum


Taprooted perennial with 1-few erect or ascending stems that are arachnoid-tomentose or sometimes glabrate. Flowers are pink to purple, 18-25 mm long, tubes 7-9 mm, throats 5.5-7.5 mm, lobes 4-8 mm; style tips 3-5.5 mm.


Sparsely-vegetated soils of washes and steep, eroded gullies in dissected or badlands topography. Associated species include Juniperus scopulorum, Chrysothamnus nauseosus, Artemisia ludoviciana, Atriplex confertifolia and Elymus trachycaulis.


Spotted- Devil's Tower, WY

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Spotted by

Wyoming, USA

Spotted on Aug 10, 2010
Submitted on Feb 10, 2011

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