Yucca

Why
The yucca is not there on purpose but was planted by my mother last year. We've actually been trying to get rid of the yucca all summer but it has big, really deep roots so it just wont' die. It's exciting to see the other plants do better than the yucca though.
Where
Yucca is not native to my area and is common in the southeastern US.
What
There are actually alot of different yucca species and I have no idea what kind of yucca this is. Yucca generally have sword shaped leaves and fancy flowers, and some even have edible fruit!