Hi guys.
This is a type of grass, and it sends those underground roots to form a new plant a few inches away. It will quickly form a clump if you don't get it out of there. This grass will die down when
it frosts, but can come back the following year like gangbusters. It will also break off underground very easily and keep coming back if you aren't careful to get it all. This grass also has a
small nutlike kernel that grows on its roots, as well as a prickly seed pod on the top like other grasses. This one doesn't get very tall, but it can completely cover your garden very quickly.