A hellebore growing in waste ground by the side of the railway track.
No interactions present.
...if it helps, is acaulescent, ie no leaves on the flowering stem. And the leaflets of viridis are narrow, slender.
I always think Corsican - coarse. Big coarse leaves, big coarse teeth.
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
Lat/Lng: 51.37695, 0.00776
OS grid ref: TQ398661