Flummoxed

When I zoom in this reminds me of a brain. I have no idea what it is and am struggling with the Internet over here in Corfu so I shall have to research when I get home.

[xbm]

https://en.wikipedia.org/wiki/Maclura_pomifera

[JackieR]

Is it a gourd?? Enjoy Corfu

[Sue Cooper]

It does look like a weird brain 😂.