United States, Texas, San Augustine, On S side of gravel road, 0.1 mile SW of iron bridge, 0.3 mile SW of TX 21 at a point 0.4 mile W of FR 354 at Denning, ca. 8 miles W of San Augustine, Chireno North 7.5' Quad., Niciper Creek.
Open, seepy sloping ironstone outcrops in pasture. Geology: Weches Formation (Eocene). Associated with Sedum pulchellum, Valerianella radiata, Anemone heterophylla, Minuartia patula, and Dalea compacta var. compacta.