So, the quick version of this story is that I salvaged this plant from a pot that my boyfriend's sister left at our house. I wasn't sure what it was, but it had an established root system and some green nubs at the top. Many months later, it looks like this, but it hasn't flowered or anything. I also have nasturtiums planted nearby, but their leaves are smooth, with rounder edges. Their stems also seem to go all over the place. On this plant, all of the leaves are coming from a central node, and they're fuzzy all over. They start off growing like a fan and unfold as they get bigger.
There's a weed in my yard that grows in a similar way, but the leaves are crinkly, with round edges, and no fuzz. They're also darker.
So, I don't know... I'm trying to figure out what it is, because if it isn't anything, I don't know why I'm wasting a perfectly good pot on it.