United States, Tennessee, De Kalb, Edgar Evins State Park. Eastern Highland Rim Physiographic Region. Center Hill Dam Quadrangle. Elevation about 730 feet. Growing on vertical rock ledge, little south of east facing cliff.
Growing on vertical rock ledge with Juniperus virginiana, Arenaria patula, Arenaria serpyllifolia, Chaerophyllum tainturieri, Euphorbia commutata, Geranium carolinianum, Oxalis dillenii, Pellaea atropurpurea, Phacelia purshii, Silene anthirrhina, Sedum pulchellum, Viola rafinesquii.