http://monarchjointventure.org/images/u ... _flyer.pdf
This European invasive is just one of the several big reasons for the decline of our beloved Monarchs.
I believe....wherever you live in America....this noxious plant is coming to you. You will want to keep a close eye out for this one and you will regret if you do not.
The link is quick, clear and very informative. This thing is already here in Maine. I was told about it last year and noticed my first plant about a month ago.
This plant stands to be the demise of our native wildflowers.
This all goes back to the fact that we are moving species around faster than ever before.