Here’s my current record for most ferns growing on top of each other!
A tree fern called a ponga (Alsophila tricolor) forms the base, growing on this tree ferns trunk is a hen and chicken fern (Asplenium bulbiferum).
Hen and chicken ferns grows little bulbils (baby ferns) on its fronds, when the bulbils are old enouph, they drop off to become a new hen and chicken fern.
These bulbils make up the final layer of ferns of my fern stack, making it a magnificent 3 layers of fern.
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![A fern growing on a fern growing on a fern [oc]](https://mander.xyz/pictrs/image/d9507ebc-df73-4014-8039-9b0a2180d43f.jpeg){kind=link}