On Jan 10, 2009, creekwalker from Benton County, MO (Zone 5a) wrote:
This plant is an alien and can be invasive. I particularly do not like this plant due to the firey red welts it causes on my skin from a mere brush against it. It has bristles on the leaves and stems that "grab" ahold of you.
This plant has been said to grow in the following regions:
Cole Camp, Missouri Sedalia, Missouri Puyallup, Washington