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| Kingdom Animalia |
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Acropora carduus (Dana, 1846) – valid
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Arothron carduus (Cantor, 1849) – valid
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Fissidentalium carduus (Dall, 1889) – valid – thistle tuskshell
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Leptus carduus Southcott, 1999 – valid
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Tetrodon carduus Cantor, 1849 – invalid |
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| Kingdom Plantae |
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Carduus L. – accepted – plumeless thistle
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Carduus acanthoides L. – accepted – spiny plumeless thistle, plumeless thistle, spiny plumeless-thistle
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Carduus acanthoides ssp. acanthoides L. – accepted
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Carduus altissimus L. – not accepted
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Carduus americanus (A. Gray) Rydb. – not accepted
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Carduus araneosus Osterh. – not accepted
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Carduus arvensis (L.) Robson – not accepted
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Carduus austrinus Small – not accepted
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Carduus carolinianus Walter – not accepted
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Carduus coloradensis Rydb. – not accepted
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Carduus crispus L. – accepted – curly plumeless thistle, curly plumeless-thistle, curled thistle, welted thistle
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Carduus discolor (Muhl. ex Willd.) Nutt. – not accepted
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Carduus helenioides L. – not accepted
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Carduus helenoides L. orth. var. – not accepted
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Carduus helleri Small – not accepted
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Carduus inamoenus Greene – not accepted
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Carduus lanceolatus L. – not accepted
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Carduus lecontei (Torr. & A. Gray) Pollard – not accepted
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Carduus macounii Greene – not accepted
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Carduus macrocephalus Desf. – not accepted
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Carduus macrolepis Peterm. – not accepted
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Carduus marianus L. – not accepted
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Carduus muticus (Michx.) Pers. – not accepted
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Carduus nevadensis Greene – not accepted
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Carduus nutans L. – accepted – nodding plumeless thistle, nodding thistle, musk thistle, nodding plumeless-thistle, chardon penche, plumeless thistle
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Carduus nutans ssp. leiophyllus (Petrovic) Stojanov & Stef. – not accepted – nodding plumeless thistle, nodding thistle, musk thistle
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Carduus nutans ssp. macrocephalus (Desf.) Nyman – not accepted – nodding plumeless thistle, musk thistle, nodding thistle
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Carduus nutans ssp. macrolepis (Peterm.) Kazmi – not accepted – nodding plumeless thistle, musk thistle, nodding thistle
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Carduus nutans ssp. nutans L. – not accepted – nodding plumeless thistle, musk thistle, nodding thistle
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Carduus nutans var. leiophyllus (Petrovic) Arčnes – not accepted
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Carduus nutans var. macrocephalus (Desf.) B. Boivin – not accepted
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Carduus nutans var. vestitus (H.M. Hallier) B. Boivin – not accepted
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Carduus nuttallii (DC.) Pollard – not accepted
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Carduus pinetorum Small – not accepted
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Carduus pulchellus Greene – not accepted
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Carduus pumilus Nutt. – not accepted
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Carduus pycnocephalus L. – accepted – Italian plumeless thistle, Italian thistle, compact-headed thistle
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Carduus repandus (Michx.) Pers. – not accepted
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Carduus smallii (Britton) H.E. Ahles – not accepted
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Carduus spathulatus Osterh. – not accepted
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Carduus spinosissimus Walter – not accepted
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Carduus tenuiflorus W. Curtis – accepted – winged plumeless thistle, Italian thistle, slenderflower thistle, slender-flowered thistle, winged thistle
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Carduus thoermeri Weinm. – not accepted
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Carduus tracyi Rydb. – not accepted
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Carduus truncatus Greene – not accepted
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Carduus undulatus Nutt. – not accepted
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Carduus undulatus var. canescens (Nutt.) Porter – not accepted
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Carduus virginianus L. – not accepted
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Carduus vulgaris Savi – not accepted
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Carduus X orthocephalus Wallr. – accepted – plumeless thistle |
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