Yes, or a hybrid of the two (tuberculosa and tigrina) but it could be just different forms of tuberculosa, or tuberculosa looks different under different conditions. Do you grow it in full sun, all day, or partial shade?
Example, 1st picture is the one I suspect is a hybrid or a tuberculosa w/less tubercles (one head of for sure tuberculosa in the background.)
The second is a for sure tuberculosa I had that I split up. They look different enough but both have tubercles. With less popular plants, it's pretty difficult to find enough good information to figure it out. No clue why these aren't more popular though.
Sorry to derail your thread, I just know that many people that grow their plants seriously like to know what their plant actually is, and figured you might be one of these people (seeing as how you're posting on a board dedicated to it! )