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If you enlarge photo 2, you can clearly see the bracteoles which distinguish this from U. gallii which would, in any case, not be in full bloom at this time.
The bracteoles look very small to me, but it does seem too early flowering for U. gallii. Nevertheless, I think there are reasons for doubt and I'm surprised by the level of agreement on this one.
I think cabbageleek has a point. I was just put off by usual flowering time July-Sept.
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I have noted cabbageleeks comments with interest. This plant was growing in a very exposed and harsh environment and was flowering all along the coast for miles. From what I have read Western Gorse does not come into flower for many weeks yet. If it is not Gorse as cabbageleek suggests then what could it be please?
It probably is Common Gorse, I just think you can't be 100% sure from these pictures. Also, these species hybridise and you can get mixed populations. In the west of Ulex gallii's range the bracteoles are very small, but as you go east they are larger, presumably through introgression with Ulex europaeus.
The bracteoles in Ulex europaeus are very small, but in gallii they are minute and would hardly be visible.
Lat/Lng: 50.2, -4.0
OS grid ref: SX6345