Unknown plant

Unknown plant

Observation - Unknown plant - UK and Ireland. Description: Plant found in woodland set in urban areas. Intriguingly, there are always earwigs sheltering in the folds of the uppermost leaves. Can anyone recommend a plant id book (with photos) with a key a novice can use with a bit of effort? What you see is this

Plant found in woodland set in urban areas. Intriguingly, there are always earwigs sheltering in the folds of the uppermost leaves. Can anyone recommend a plant id book (with photos) with a key a novice can use with a bit of effort? What you see is this season's growth. Many thanks!