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tall thistle
89%
Cirsium altissimum
Anderson's thistle
89%
Cirsium andersonii
Franciscan thistle
89%
Cirsium andrewsii
Wyoming thistle
89%
Cirsium pulcherrimum
Canada thistle
89%
Cirsium arvense
Palouse thistle
89%
Cirsium brevifolium
clustered thistle
89%
Cirsium brevistylum
Douglas' thistle
89%
Cirsium douglasii
few-leaf thistle
89%
Cirsium remotifolium
fountain thistle
89%
Cirsium fontinale
peregrine thistle
89%
Cirsium cymosum
soft thistle
89%
Cirsium carolinianum
fringed thistle
89%
Cirsium clavatum
Greene's thistle
88%
Cirsium inamoenum
field thistle
88%
Cirsium discolor
dwarf thistle
88%
Cirsium drummondii
edible thistle
88%
Cirsium edule
Flodman's Thistle
87%
Cirsium flodmanii
elk thistle
87%
Cirsium foliosum
Graham's thistle
87%
Cirsium grahamii
white thistle
87%
Cirsium hookerianum
horrid thistle
87%
Cirsium horridulum
Suisun thistle
86%
Cirsium hydrophilum
bull thistle
85%
Cirsium vulgare
Le Conte's thistle
85%
Cirsium lecontei
swamp thistle
85%
Cirsium muticum
New Mexico thistle
84%
Cirsium neomexicanum
Nuttall's thistle
84%
Cirsium nuttallii
cobwebby thistle
84%
Cirsium occidentale
yellowspine thistle
84%
Cirsium ochrocentrum
European marsh thistle
84%
Cirsium palustre
Parry's thistle
84%
Cirsium parryi
mountaintop thistle
84%
Cirsium eatonii
sand dune thistle
84%
Cirsium pitcheri
prairie thistle
84%
Cirsium canescens
Arizona thistle
83%
Cirsium arizonicum
pasture thistle
83%
Cirsium pumilum
Alameda County thistle
83%
Cirsium quercetorum
sandhill thistle
83%
Cirsium repandum
Virginia thistle
83%
Cirsium virginianum
Texas thistle
82%
Cirsium texanum
meadow thistle
82%
Cirsium scariosum
wavy-leaf thistle
82%
Cirsium undulatum
Mojave thistle
81%
Cirsium mohavense
Wheeler's thistle
81%
Cirsium wheeleri
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