I'm not too sure about this one, it might be Wild Watercress
No interactions present.
Might this not equally be N. microphyllum - Narrow-Fruited Watercress?
BSBI VC Recorder
My id book indicates that the ranges of both cover that area of the Dales park.
Lat/Lng: 54.4, -2.1
OS grid ref: NY9705