Rubus caesius hybrid, Plymouth

Rubus caesius hybrid, Plymouth

Observation - Rubus caesius hybrid, Plymouth - UK and Ireland. Description: Growing on a roadside bank with rough herbage. It agrees well with the description of Rubus caesius by Alan Newton and the early flowering supports this view, but I cannot be certain of the ID.

Growing on a roadside bank with rough herbage.
It agrees well with the description of Rubus caesius by Alan Newton and the early flowering supports this view, but I cannot be certain of the ID.