I had some moss in one of my seedlings pot and I asked what I should do with it here in GSE. I was assured it was mostly harmless so I left it be. However, a couple of days ago, it has sprouted leaves. Does moss do that o_O? If not, what is it? Is it time to panic?
I don't think it's something independent from moss. since, as you can see, it only sprouts in the center of the moss.