Cirsium horridulum var. horridulum

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Variety horridulum occurs on the Atlantic and Gulf coastal plains fom southern Maine

       to Florida and west to eastern Texas and into the piedmont in much of the southeastern
       United States. Artificial hybrids have been produced between var. horridulum and Cirsium
       repandum (R. J. Moore and C. Frankton 1969), and natural hybrids with C. pumilum var.
       pumilum have been reported.