Thanks for the alternate ID, Dawn, but I can guarantee this is not a mulberry as the tree produces lime fruits (none this year for some reason) and is in my garden. I'd like it to be a mulberry, though!
University of Edinburgh and Biodiversity Observatory (OU)
... that this was Tilia rather than Morus, but you've got a better one than I have.
I had read the photograph as a "pollarded" lime consequently producing atypical foliage (you can't use sprout leaves to identify limes).
Morus leaves are 3-nerved at the base. Tilia are typically 5-nerved at the base. The exemplar leaf is 3-nerved, and there isn't a large sample of leaves with a clear view of the venation pattern, but it looks as if most of them are 5-nerved.
The sandpaper texture of the upper side of the leaves is a useful field marker for Morus nigra.
Thanks for the ID tip, lavateraguy. Your regular help with such things is much appreciated. You will be interested to know that we want to find a way to make such tips searchable so that they can be displayed when and where they are relevant. We have not cracked how to do this yet, so don't hold your breath, but keep up the good work!
... get the users to upvote what they think are useful identification tips.
Good idea. I like its simplicity too.
...surely it's Citrus aurantifolia?
Or Entelea arborescens?
How to take close-ups with cheap phone and hand-lens:
Field Guides for Budding Botanists:
Lat/Lng: 52.0, -0.7
OS grid ref: SP8936