Beginner Gardening: What is this weed and why won't it die?????, 0 by danludwig

danludwig wrote:
I have a few of these in my flower beds, but mostly they're in my lawn. What are they, and how can I kill them more effectively? WeedBGon doesn't seem to work, and even with RoundUp, it seems like it takes forever before they turn completely brown. Is there any way to kill them more effectively in either a lawn or flowerbed, without disturbing the desirable bluegrass or perennials? I've searced various weed photo databases, but couldn't find anything that looked quite like this.

Thanks,

Dan