Epipactis helleborine

It looks like Epipactis gigantea to me, I've always wanted the very rare cultivar of this called, 'serpentine night'.

Thanks. I did some searching and believe it's Epipactis helleborine.. it's in an odd spot, but since last year there were two growing points and this year there are four, it must be doing ok, so I'll leave it one more year before moving it.
That serpentine night is beautiful!