I had to wait until now to find the correct name: Dipteracanthus prostratus or Ruellia prostrata, instead of Dipterantus prostratus as I thought it was from the mentioned blog.
At any rate these varieties grow wild, considered a weed in every context. I have domesticated them and are among the most important in my collection.
Not only because they self seed, but no one that I know, plants them, and you can not get them from nurseries.
So there. The name will be added to the collection inventory previously provided.
That is that.