Alligator Flag ???
My sister has some plants that she thinks came out of some dirt/mulch that she bought from a local place that sells truckloads of dirt and she or I have no idea what it is but all I can think of would be "Alligator Flag''. I will give several pictures so you can see it up close as well as the root system! She has no idea if it flowers or not since she just got the dirt recently and it's coming up in several of her potted plants. Any ideas???