Well, the biological angle kind of makes sense if you think of it as taking the branches from a big tree, without the roots and successfully planting them in the ground individually. It doesn't quite work that way in practice, but if it did, you would get a small forest.

Don't forget the nut metaphor.

* https://superuser.com/a/329479/38062

> In IT, if you take a tree and remove the root, the result is a forest. Biologists don't agree.

Unless it's Pando:

https://en.wikipedia.org/wiki/Pando_(tree)

By the way, did you know that broad-leaved trees are infinitely large during winter? The proof is really easy to do for yourself: In winter, those trees don't have any leaves, so all nodes must be inner nodes, and you can easily show by induction that the height of the tree must be infinite.