The bottom picture doesn't look at all like daylily roots to me. Now big are these? Maybe they don't look like daylilies because they are super tiny? The foliage looks right, but the rest doesn't. That's just my opinion though. Hopefully someone else will be more helpful!
If you could post a picture of the "weeds" on the bottom with a ruler, or a quarter, or something else to show the size, I think that would be helpful.
