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Kingdom   PLANT   (PLANTAE)
Phylum   SEED PLANTS   (EMBRYOPHYTA)
Class   DICOTS   (DICOTYLEDONEAE)
Order   COMPOSITES, BELLFLOWERS AND ALLIES   (CAMPANULATAE)
Family   DAISY   (COMPOSITAE)
Subfamily   THISTLE   (CYNAREAE)
Species 
Common name: BURDOCK - GREAT
Scentific name: ARCTIUM LAPPA
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Species
Common name: BURDOCK - COMMON
Scentific name: ARCTIUM MINUS
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Species
Common name: BURDOCK - WOOLY
Scentific name: ARCTIUM TOMENTOSUM
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Species
Common name:
Scentific name: CARDUUS ACANTHOIDES
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Species
Common name: THISTLE - MUSK OR NODDING
Scentific name: CARDUUS NUTANS
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Species
Common name: THISTLE - STAR
Scentific name: CENTAUREA AMERICANA
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Species
Common name: THISTLE - STAR
Scentific name: CENTAUREA CALCITRAPA
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Species
Common name: CORN FLOWER
Scentific name: CENTAUREA CYANUS
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Species
Common name:
Scentific name: CENTAUREA DEALBATA ROSEA
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Species
Common name: KNAPWEED - BUSHY
Scentific name: CENTAUREA DIFFUSA
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Species
Common name: KNAPWEED - BROWN OR RAYED
Scentific name: CENTAUREA JACEA
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Species
Common name: TOCALOTE
Scentific name: CENTAUREA MACULOSA
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Species
Common name: CENTAURY - RAYLESS WINGED
Scentific name: CENTAUREA MELITENSIS
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Species
Common name: CORN FLOWER
Scentific name: CENTAUREA MONTANA
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Species
Common name: KNAPWEED - RUSSIAN
Scentific name: CENTAUREA REPENS
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Species
Common name: THISTLE - YELLOW STAR
Scentific name: CENTAUREA SOLSTITIALIS
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Species
Common name: THISTLE - CANADIAN
Scentific name: CIRSIUM ARVENSE
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Species
Common name: ARIZONA THISTLE
Scentific name: CIRSIUM ARIZONICUM
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Species
Common name: THISTLE - CALIFORNIA
Scentific name: CIRSIUM CALIFORNICUM
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Species
Common name: THISTLE - PLATTE
Scentific name: CIRSIUM CANESCENS
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Species
Common name: THISTLE - WHITE
Scentific name: CIRSIUM CANOVIRENS
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Species
Common name:
Scentific name: CIRSIUM COULTERI
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Species
Common name: THISTLE - FIELD
Scentific name: CIRSIUM DISCOLOR
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Species
Common name: THISTLE - EDIBLE
Scentific name: CIRSIUM EDULE
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Species
Common name:
Scentific name: CIRSIUM ENGELMANNII
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Species
Common name: THISTLE - ELK
Scentific name: CIRSIUM FOLIOSUM
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Species
Common name: HOOKER'S THISTLE
Scentific name: CIRSIUM HOOKERIANUM
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Species
Common name: THISTLE - YELLOW
Scentific name: CIRSIUM HORRIDULUM
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Species
Common name: HORRID THISTLE - PURPLE
Scentific name: CIRSIUM HORRIDULUM ELLIOTTII
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Species
Common name: THISTLE - SHOWY
Scentific name: CIRSIUM MAGNIFICUM
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Species
Common name: THISTLE - SWAMP
Scentific name: CIRSIUM MUTICUM
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Species
Common name: NEW MEXICO THISTLE
Scentific name: CIRSIUM NEOMEXICANUM
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Species
Common name: THISTLE - EDIBLE
Scentific name: CIRSIUM SCARIOSUM
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Species
Common name:
Scentific name: CIRSIUM SMALLII
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Species
Common name:
Scentific name: CIRSIUM TEXANUM
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Species
Common name: THISTLE - WAVY LEAF
Scentific name: CIRSIUM UNDULATUM
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Species
Common name:
Scentific name: CIRSIUM UTAHENSE
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Species
Common name: THISTLE - BULL
Scentific name: CIRSIUM VULGARE
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Species
Common name: ARTICHOKE - GLOBE
Scentific name: CYNARA SCOLYMUS
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Species
Common name: THISTLE - GIANT SCOTCH
Scentific name: ONOPORDUM ACANTHIUM
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Species
Common name: THISTLE - MILK
Scentific name: SILYBUM MARIANUM
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Species