Yellow flower

Yesterday I blipped a bee inside a flower head. Knottman2 suggested the flower might be Trollius europaeus. Of course I had no idea. All I know is that it is a shrub with bright yellow flowers that attract bees. It must be common and hardy as it has been growing in our garden for a long time. I felt I really ought to look it up and I think it is Hypericum. But I have really no idea. Maybe one of the many flower people could help. 

Anyway the most important thing about this picture is the raindrop on the leaf. We had rain!! Not a lot, but it was actually wet for a few minutes.