Okay so I did some basic investigation on these things because I thought they looked cool and it turns out that they are actually pretty interesting! I dunno if any of my followers are interested in background stuff about some plants that may not be widely found in regions where the game came out, but just in case… Here you go.
The part of the fern shown in the picture isn’t a “stem” per se, but something called a “fiddlehead,” a leaf that hasn’t fully unrolled itself yet. (Picture 2 shows what they look like IRL.) They’re considered vegetables and are used in cooking in many parts of the world, especially Asia. Unfortunately, certain fiddleheads contain chemicals that can be toxic and all fiddleheads must be cooked thoroughly to avoid substances that may be toxic, so these cool-looking vegetables may be more trouble than they’re worth, unless (like me) you really like spiral shapes. They are pretty rare where I’m from though so I dunno if I’ll ever get to try ‘em.
I especially like that someone made a statue of a fiddlehead because that’s something I would do.
(All my info came from Google and Wikipedia, go there for more info.)