This is the first fungus I've seen growing on Ulex europaeus.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
Did you get a photo of the underside to see if it has pores or gills as this may help with an identification.
I'll see if I can get a picture of the underside when I return next week sometime!
It should still be there as it look's like a type of bracket fungi,I had at first thought Dryad's Saddle - Polyporus squamosus
Thats the one
Lat/Lng: 50.698647222222, -2.0394827777778
OS grid ref: SY973887