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TIFF file. Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 425. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc. Usage Requirements.
See U.S. county distributions (when available) by clicking on the map or the linked states below: USA (AL, CT, DC, DE, GA, KY, MA, MD, ME, MI, MN, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV), CAN (LB, NB, NF, NS, NU, ON, PE, QC), FRA (SPM)
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