Very aromatic shrub

Very aromatic shrub

Observation - Very aromatic shrub - UK and Ireland. Description: This very aromatic shrub was found in a coastal area. Very untidy looking, arborous. Leaves finely toothed. Smells very strongly, almost resinous. Any help would be appreciated.

This very aromatic shrub was found in a coastal area. Very untidy looking, arborous. Leaves finely toothed. Smells very strongly, almost resinous. Any help would be appreciated.