Alder Buckthorn

Alder Buckthorn

Observation - Alder Buckthorn - UK and Ireland. Description: Apologies for the terrible photos but can anyone confirm that this is Alder Buckthorn, much loved by Common Brimstone butterflies?

Apologies for the terrible photos but can anyone confirm that this is Alder Buckthorn, much loved by Common Brimstone butterflies?