beech or sycamore perhaps

beech or sycamore perhaps

Observation - beech or sycamore perhaps - UK and Ireland. Description: Sorry I did not take a photo of the full tree. Can anyone identify from the small piece I managed to pinch. Silvery grey smooth bark, purple flowers hanging upright, and new leaf bud.

Sorry I did not take a photo of the full tree.
Can anyone identify from the small piece I managed to pinch.
Silvery grey smooth bark, purple flowers "hanging" upright, and new leaf bud.