Wavy leaf Thistle==Gray Thistle - Asteraceae (Aster Family)  Cirsium undulatum
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Cirsium undulatum

circium undulatum flower

Shows  bracts with white glandular ridge - Photo of plant from Little Cottonwood Canyon  14 June 2012
white glandular ridge

Photo Details
1.  Neff's Canyon, Salt Lake County, Utah
2.  KCC highway, Salt Lake County, Utah
3.  Lamb's Canyon, Salt Lake County, Utah

Native biennial to perennial

To see butterflies that use this plant as a host plant, click on
California  Crescent - Phyciodes orseis
Painted Lady - Vanessa cardui
American Lady - Vanessa  virginiensis

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