The allure of Dusky Challenger is this:
http://wiki.irises.org/bin/res...
This is what the real Dusky Challenger looks like. At least one seed company is selling plants that appear not to be the real deal - maybe seedlings from Dusky Challenger. I have had the real deal originally, direct from the hybridizer, Schreiners, and so I am not fooled by this seedling that the seed company has apparently sold me. The Real Dusky Challenger is awesome. This imitator is quite ordinary. I know the difference.