Many dahlias are never identified. Lots of reasons: there are thousands of varieties out there. Many look similar in pictures. Some garden grown flowers may well be seedlings that were never named.

If you do post a picture of an unknown, be sure to list the size of the flower as pictures do not capture that. Also, if you have any part of the name or a list of possible names, that would really help. If you have had it for many years, that is pertinent too. And any guess as to where it was purchased helps too.