Daffodill greenery has more of a rounded "leaf", Iris greenery is usually "fan" shaped and thin pointed "leaves", Daylilly greenery is kind of in-between the others, meaning thicker than Iris, and not round like Daffodil, but tall and willowy, kind of bending over in a graceful curve.
Right now, Daffodil greenery will be turning yellow or brown and lose it's upright habit. Iris have quit blooming in my area also, but the greenery is still standing tall but beginning to look faded. Daylilies have not yet bloomed, so the greenery will be tall and vibrant looking.
Thank you so much for answering me. I was beginning to think I didnt do the thread thing right. I think I understand what you're saying. I'm going to plant the ones I think are daylilies with my other ones. What can I loose. They are from my mom's yard and we're selling her house. Shes in a carehome. Do the daylilies have a bulb or are there a lot of radash looking things at roots?