Never seen this tree species before....what IS it?

[beefheart]

Hi, I was visiting friends in Shrewsbury, Shropshire last week and knowing my interest in woodlands they asked me what type of tree this is near their home. I was totally stumped.  Have posted 7 pictures. FYI - the photo taken from across the river shows the mystery tree's size - its the one to the left of the seating bench. Does anyone know what this tree is? Thanks, in advance.

Edited July 29, 2023 by beefheart

[Mick Dempsey]

Cut leaf beech?

[Duncan.]

Is there a cut leaf Alder? Looks a bit Aldery to me.

[nepia]

There is a cut leaved alder; I have one in the garden.  I think that's a good shout

[Steve Bullman]

47 minutes ago, nepia said:

There is a cut leaved alder; I have one in the garden.  I think that's a good shout

Is that its typical growth pattern? Starts off with alternate leaves then becomes very much one sided. 

[Timtree]

Look like Alnus imperialis   A much under planted tree.

[Will C]

Looking at the last picture I would say soon dead from strimmer ring barking!

[beefheart]

Thanks to all for your ideas and suggestions. Very much appreciated. Having looked up all the suggested trees and comparing them to the photos I have I think the most likely candidate is the Alnus Imperialis (black alder imperialis). Cheers!

[nepia]

22 hours ago, Steve Bullman said:

Is that its typical growth pattern? Starts off with alternate leaves then becomes very much one sided. 

No idea; mine's only about 5' tall!