Annual. Dainty and delicate appearance. Growing from cracks in the rock.
No interactions present.
This might not be a wild plant - there are many exotic Saxifraga species and hybrids grown in gardens. We would need a better shot of the leaf, and some idea of size would also be a help. If it is S. hypnoides it is unlikely to be a wild plant in this location.
recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.
Mossy Saxifrage has flowers that are much larger than this. Local guides are often wrong!
Have seen both Mossy and Rue leaved Saxifrage in the wild and there was never a thought that it might be Mossy Saxifrage. The jizz, location, flower size (about 5mm) all to me screams Rue leaved Saxifrage. There isn't any more photo's available but I see this regularly each Spring and will endeavour to photograph the leaves and then identification will be beyond doubt
Please see my Flickr photo's www.flickr.com/photos/129804972@N07/
Lat/Lng: 53.6479, -1.253
OS grid ref: SE494170