Variegated Comfrey! But what species?! ID pls

Variegated Comfrey! But what species?! ID pls

Observation - Variegated Comfrey! But what species?! ID pls. Description: I recently Discovered this species of variegated Comfrey on the Allotments, and im just trying to work out which type of variety it might be! It could be Symphytum officinale or x uplandicum Comfrey, but dont know. It has mid-bright yellow edged leaves, l

I recently Discovered this species of variegated Comfrey on the Allotments, and im just trying to work out which type of variety it might be! It could be Symphytum officinale or x uplandicum Comfrey, but dont know. It has mid-bright yellow edged leaves, leaves similar to either the 2 Comfrey species stated.