United States, Kentucky, Menifee, Daniel Boone National Forest, main gorge of Spaws Creek, 0.8 mile north of Dan [plant biodiversity surrogacy study-plot NF2 middle-SE 1X1]. 37.9661 l°N-83.45791°W. Allen C. Risk, A. Callihan. R. Wente, L. Miles No. 18,417