This is an aggressive weed that showed up in our yard after getting some mulch. No one seems to know anything about this weed. It rebulbs through it's stem creating many new bulbs that then form plants. Very aggressive and in a short period of time it is all over our yard and now showing up in neighboring yards. Not sure how to get rid of it. We did try screening the dirt and pulling the bulbs. It cut them back but there are still plenty of them left. We pull them out but with the bulbs they just grow back. PLEASE HELP.