Thanks to all for the photos, now they story is more complicated than ever !
Oron, these Sicilian plants open surely at 3 pm, (photo was taken at 4 pm, but consider the legal time now) as well as the other native 'sisyrinchium', than now I don't know how to call.
Both have a well visible yellow signal, the Sicilian plants have one leaf, linear, thin and rather floppy, the native ones have two leaves, larger adn spirally twisted, laying on the ground. My native ones have not flowered yet, the Sicilian ones are probably ended, they grow just 1m apart, in the same position in full sun. Both are just 10cm tall.
Now, Darren, Kris and Hans have posted photos of plants without the yellow signal and I am happy that Hans put a photo of that Turkish plant, which I have never seen such a tall one ! I friend of mine got a couple of corms from a trade, labelled as M. sisyrinchium and are just the same of Hans, the plant are very tall and with well branched stems and rather large flowers too.
I have seen also several photos of wild plants from Sicily and Sardinia, showing also tall plants as well as short ones, but in Apulia I have always found very small plants
