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bull thistle
39%
Cirsium vulgare
clustered thistle
32%
Cirsium brevistylum
few-leaf thistle
32%
Cirsium remotifolium
edible thistle
32%
Cirsium edule
wavy-leaf thistle
31%
Cirsium undulatum
Canada thistle
31%
Cirsium arvense
Palouse thistle
29%
Cirsium brevifolium
graygreen thistle
29%
Cirsium cymosum
yellowspine thistle
28%
Cirsium ochrocentrum
fringed thistle
26%
Cirsium clavatum
camas
24%
Camassia quamash
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