Actually I have seen plants bear flowers of slightly different colors from year to year. For instance my D. superbum plants have varying degrees of color from year to year. The following are two different plants of same species.
My point is that the slightly different coloration I see in the previous examples may be because they are different hybrids, or may be due to variations in color from year to year. Just a thought.
do you think that the color variation was due to temperature differences? I know that with red pigments, color intensity is definitely dependent on cool temperatures.
regardless, this shows to illustrate why hybrid identification is so difficult, as there is so much variability even within the same plant, let alone similar hybrids.
and all of you are making me lust after more dends. tarnation upon you!