Pulling apart a bit of splitting tongue and groove planking left over from making my roof box, I got a surprise.
Here’s the split.
and when I pulled it apart:
Well did you ever! A fully formed little branch growing inside the plank. Note the groove where it sat in the lower piece, the whole thing over a foot long. Is this common? I never came across it before. Do branches grow inside trees? Feel free to educate me if you know more about these things.