If you go to the AHS Registry, and it isn't listed there, then it is likely not registered. People don't usually use a name of one that has been registered. You can look at the AHS registry and see all of the details and see if the one you bought matches the AHS record. There are alot of details there (also lots of pictures on the Hosta Library along with the Lemke database descriptions of any/almost all hostas widely available out there. You should be able to narrow it down as to whether or not you have the real one (registered one). If you can't, post it on the ID forum here and give lots of info and someone may be able to help you, too.
Regarding names --
People usually give a new one a name first (some people never register them). Some unregistered ones are sold widely enough that people know the name and would not use it to register another new one.
