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mountaintop thistle
70%
Cirsium eatonii
bull thistle
54%
Cirsium vulgare
graygreen thistle
53%
Cirsium cymosum
Canada thistle
48%
Cirsium arvense
meadow thistle
45%
Cirsium scariosum
camas
40%
Camassia quamash
Greene's thistle
37%
Cirsium inamoenum
wavy-leaf thistle
33%
Cirsium undulatum
dwarf thistle
31%
Cirsium drummondii
New Mexico thistle
30%
Cirsium neomexicanum
Douglas' thistle
30%
Cirsium douglasii
Palouse thistle
29%
Cirsium brevifolium
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