<i>Aconitum uncinatum</i> L.  (Southern Blue Monkshood)
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. 2: 97. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc.
1913
<a rel="nofollow" class="external text" href="https://plants.usda.gov/gallery/pubs/acun_001_avd.tif">USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 97.</a>