Greg,
Agreed that flowers are often your best indicator. leaf tips of darker color are another. That tends NOT to change even under various growing conditions.
We look to the Germans as being the gold standard too but Erwin has found things of mine that are wrong over there. Luckily I'm still on the planet and can tell him whether it is or not.
Also I can understand why a note from a single customer might not convince them unless you have good documentation. These plants look very different in different locations so that even the photos shown on our data base don't cover all these situations. The only real way is growing the plants side by side. That's how Mrs. Crane did it. However, I do think your notes on a "possible bad ID" is useful for the nursery people. Remember they have invested a lot of $$ producing this plant too. Recently I saw 'Rubikon' and had never seen it that large but it was being grown in hoop houses with optimal fertilizer and water. It didn't have to deal with the vagaries of life in the real world. So here's a plant I've known for 45 years but I'm finally seeing it grown optimally. So don't rush to judgement.
Kevin
