Treelore

I am familiar with some pretty voracious ground covers like Vinca minor and pachysandra that once planted are pretty hard to stop growing. These from the photos don't look like Oak shoots nor can I identify them though. I have never heard of prolific oak suckering from roots (not to say it doesn't happen) I might be talking to someone local to have a positive ID on the plants before applying anything liberal over the ground area. Are you mowing over the area?? just wondering if the shoots were much higher at a time or they are merely a 3-4 inch covering spreading excessively?