United States, Arkansas, Phillips, St. Francis National Forest. Site #6. TRS: T1S R4E S1 NE4 NW4
34.639435 -90.637214 +-221m. WGS84
Used collector's site map from jstor publication and USDA St. Francis National Forest Service Road map circa 1982 to locate Site #6. Correlated with ESRI USGS Topo USA (faster) map
Rock quarry. Other plants: cottonwood, bitterwood, pepper vine, Johnson grass.