United States, Texas, Bexar, Ca. 150 ft. upstream from (N of) dam on largest (N-most) pond on Gallagher Ranch, ca. 0.6 airmiles NNE of ranch HQ, 0.8 mi. SW of St. Rt. 16 bridge over major tributary at village of San Geronimo (marked on topo). San Geronimo Quadrangle.
29.6125 -98.80444
Locally frequent in two spots on ledges of Glen Rose limestone along partially shaded to unshaded W bank of San Geronimo Creek.