Flora of North America still shows Berlandiera betonicifolia as Berlandiera X betonicifolia ( one of it's synonyms) because it was/is thought to be a hybrid of B. texana and B. pumila.
If anyone feels like wading through scientific jargon here is a description of the two, scroll down to the bottom. You can click on the individual names to see a more in depth description.
http://www.efloras.org/florata...
