[Keith in Iowa]

From the looks of http://forums2.gardenweb.com/forums/load/peren/msg0718130510862.html you're stuck with it...

[Basselope]

LOL, I went to that forum before I posted this here! I was quite discouraged after reading that forum!

I have to say, though, if someone comes up with a sure-fire way to get rid of this plant, you can probably make a MINT!