On gravel on drive
No interactions present.
When you look at "other observations" you'll see that rustyback fern looks different.
If there are sori on the other side of the frond that would help identification - on the photograph I wouldn't want to make the call between a young buckler fern (Dryopteris dilatata) and black spleenwort (Asplenium adiantum-nigrum), or perhaps there are other alternatives in your neck of the woods.
Lat/Lng: 55.9, -3.6
OS grid ref: NT0469