Surprisingly, I have seen a lot of irises, but with such a shape of flowers I have never met. In irises, which grow in our flower shape resembles a snapdragon.
Here are the usual irises to me
In the first photo, the flower in color resembles exactly the flower of the plant, which we call night blindness. he has a poisonous milky sap that can take away his eyes if he gets into his eyes.
On the second photo of the flower is a completely different form. This plant is an imitator)))
Thank you for the interesting pictures and useful information!
Dietes are not really a true Iris, this is just another common name for them.