Knobs

A growth on a Tuliptree trunk.

With evidence of several others that have broken off.

Or, uh, been broken off, as in this case. I grabbed it and it snapped right off.

Meanwhile, on an oak.

What are these things? Burls of some kind? Root tissue?

On beech. Same type of growth or different?

1 Response to “Knobs”


  1. 1 nature969 January 8, 2023 at 9:42 am

    Mysteries to further explore… I love science! Happy New Year!


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