Here is another distribution map that shows it in a few more counties but still not Nueces County. Judging by this map I would bet that it is in most counties in the eastern half of Texas.
http://www.bonap.org/BONAPmaps...
Here are some more of my pictures of Modiola caroliniana.
http://www.wildflowersoftexas....
The two center pictures on the bottom row are a wild plant and the others are plants in my garden grown from a wild plant I collected. You can see how the leaf shape changed the following year with the move from the wild to my garden.
