littlefrog
Hop-meister
I happened to have all these blooming at the same time and was answering a question for somebody else. The question is "are Maudiae 'The Queen' and Claire de Lune 'Edgar von Belle' the same plant (awarded twice) or different?".
In my hands, different. Claire de Lune to the right and left of the top row (two divisions in separate pots), Maudiae 'The Queen' center top , and another clone, Maudiae 'Charlotte' lower row. Perspective says they are all the same size, but the lower flower is maybe 10% smaller than the rest. They are similar, but note that the 'warting' pattern is different. You can't see the leaves, but they are also different shades of green. So, pretty conclusively different clones.
Top row probably all triploid. 'Charlotte' breeds and is thus probably diploid. I haven't counted them...
'The Queen' has been awarded several times, possibly more than once in AOS, definitely awarded in RHS and other programs. It is possible that there is an 'Edgar von Belle' falsely awarded as "The Queen" or vice versa, can't rule that out. And they are similar enough from a distance that it would be easy to make a mistaken tag or two (unless they are in bloom at the same time!). But in my hands I have two distinct clones. Thus endeth the lesson.