Like sending Scotch broom seeds to WA; but here’s a list of what’s noxious weeds in WA: https://plants.usda.gov/java/noxious?rptType=State&statefips=53 I thought that “policeman’s helmet was interesting.
Holy Carp! I put one of those in next to my garage and in a couple of years I was wrestling with it every couple of months. Had to dig it out and burn it at the stake to kill it.
Interesting that they list Kudzu. I remember seeing it when I was a kid living in the south but I’ve never seen it in this part of the country.