The weed from hell
This weed has completely taken over the side garden of the house. It can get up to 4 or 5 feet tall if left alone. I've tried pulling it out, killing it with weed killer, but it keeps coming back. Now it's creeping into the front. HELP! What is this? I tried Googling it, but only saw one other picture of this weed. Someone has to know what it is and how to kill it.