For the last thirty years or so I collect occasionally seeds of different helleborus in Italy. My most hunted area is in the mountains between.
Siena and Viterbo.(Middle Italy)
Apart from H.foetida I have two distinct species grown from these seeds.
Species one has green flowers no smell at least here. Leafs are divided and quite soft (similar to H.thibetanus). They die back by early light frost.
I think this could be abruzzicus
Species two has hard leafs and green flowers which look sometimes a bit whitish on the backside. Distinct smell and adult Plants have strong divided leafs. These seeds collected in two different years in the same forrest appeard all in this shape.
Probably H.liguricus. Even not in the originally area first found.