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It is not Acer pseudoplatanus, it might be Acer monspessulanum but i am not sure its distribution reaches Romania.
I would have said Acer campestre just from the leaf shape, but the bark is not what I would expect.
And as it's not a UK plant, I decided not to try an ID!
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
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