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38b. Cirsium inamoenum (Greene) D. J. Keil var. davisii (Cronquist) D. J. Keil, Sida. 21: 214. 2004.
Davis’s thistle
Cirsium davisii Cronquist, Leafl. W. Bot. 6: 46. 1950
Involucres 1.5–3.5 cm diam. Corollas lavender to rich pink-purple.
Flowering summer (Jun–Aug). Arid slopes, roadsides, grasslands, sagebrush scrub, dry woodlands, montane forests; 1400–3100 m; Idaho, Nev., Utah, Wyo.
Variety davisii occurs in the northern Great Basin region and adjacent mountains from northern Nevada and southern Idaho to eastern Wyoming and northern Utah.
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