♫ Black dog in the ring . . .

(Apologies to Boney M)
 
 
Came across this on our afternoon promenade, so I got the hound to pose.  If it wasn’t for the hedge I’m sure the ring would have been complete.  There is a close-up at extra, but after googling it I have found umpteen names for the same plant – any suggestions?
 
Miserable wet day with little done other than dog walking and COVID inquiries.