United States, Texas, Sutton, Ca. 1.0 airmiles E to ESE of Canyon Ranch HQ (marked as Harrison Ranch HQ on topo), at N30o17'25.0", W100o26'41.7". Harrison Ranch Quadrangle.
30.29028 -100.44492
Locally common in bladed clay and gravel on dam and roads around N end of large on otherwise level plateau surface underlain by Edwards Limestone. Associates include Machaeranthera sp., Ratibida columnifera, Salvia farinacea, Croton dioicus, Argemone sp., Marrubium vulgare.