Tree ID please
Anyone recognise this tree, please? It's growing in Tampere, in mid Finland, and I'm pretty sure it's not a native - we saw it in a couple of parks.
Rough bark, characterful shape; long heart-shaped opposite leaves with crinkly edges...
...and clusters of pale lemon, petal-less flowers buzzing with bees in early June.
Any ideas, anyone? I'm stumped...
Thanks in advance!
Since 2019 I've lived in east Clare, in the west of Ireland.