Not of any photographic interest but.......

[John Liddle]

..... I would love to know what causes such large abnormal growths on a beech tree.

Pregnant Beech 1 by John Liddle, on Flickr

Pregnant Beech 2 by John Liddle, on Flickr

[ctrollen]

Re: Not of any photographic interest but.......

It's known as a burl and often caused by some kind of infestation
https://en.wikipedia.org/wiki/Burl

[John Liddle]

Re: Not of any photographic interest but.......

Thanks Chris - I had not connected this type of malformation with wood such as "Burr Walnut", but now I know!