I bought Purple de Oro from a local garden center. It was clearly labeled. And when I went back later in the year, half of their PdO looked like the pictures you see in our database, and half of them looked like the one I ended up with:
That's messed up right there. So I still call it Purple de Oro, and I didn't get rid of it yet because it's one of the latest blooming rebloomers I own, almost always with scapes in late September or October.
But buyer beware. Not everything out there being sold as Purple de Oro is actually Purple de Oro.