I had not, to my knowledge, seen this plant before. I had to do a search to find out what it was. I find it odd that the flowers are the same colour as the leaves.
I love this shot, and I love hellebores - especially the ones that have heavy spotting. Mine always seem to be looking down and I find them difficult to photograph.
I have seen these green hellebores in person . They are pretty but do seem a bit strange. I guess if poinsettias can have red leaves hellebores can have green flowers. :)
They are also known as winter rose or Lenten rose. They come in many colors, usually in the warm spectrum. This green color seems most unusual to me. I love how you caught the light on the blossom.