I too thought Helleborus, it is similar to Helleborus purpurascens but I don't think Myriam was saying it is a certainty? There's several species and many hybrids.
You guys are amazing. I'll take hellebore as I have many in that area.
It must be a seed. Its sprouted from between the old bark and wood of a stump.
I know I didnt plant it.
Thanks everyone.