yeah, it does sorta look like lizard's tail, which lots of folks call swamp lily. These are baby leaves, so it's kinda hard to tell at this point, since swamp lily has deep green leaves--but the shape does look right.
The Doc mentions rush as a possibility, and most of those are stalky, but pickerel rush is one that is leafy. I try to avoid rush as it can be highly invasive, but from what I remember Pickerel had a purply flower. And the leaves look quite similar as well.
If I had to guess among the two, I would say swamp lily--or lizard's tail, as you call it.