Name: josephine Arlington, Texas (Zone 8a) Hi Everybody!! Let us talk native.
You may be right, I took that picture at the botanic garden and the sign said C. imbricata, of course it could have been a mistake, those things happen.
I don't know what the right course of action would be at this point, maybe Dave can help
Wildflowers are the Smiles of Nature.
Gardening with Texas Native Plants and Wildflowers.