United States, Texas, Grayson, 7 mi. SW of center of Sherman, 0.5 mi. W of Hwy 289.
33.58333 -96.71667
Grassy and disturbed weedy areas around calcareous quarry on top of low hill, surrounded by rolling black-soil farmland. Herb with spreading-ascending branches, normally all held off the ground surface; sap milky. "Petals" white.