This plant drives me NUTS. It grows like wild all around the perimeter of the house. I was able to yank one out yesterday without it popping off right at ground level & got to a root that extended a good 7' horizontally under this particular flower bed.

wide view:

http://i42.tinypic.com/2vikuhc.jpg

close up:

http://i42.tinypic.com/2mgmqtv.jpg

I suppose I should also admit I really don't know much about gardening... I'm assuming this is a "weed" but I really don't even know that for sure. TIA for any insight! =)