Noxious Weeds

Spending the day weeding usually puts me in a noxious state of mind. Especially when I notice that many of my weeds are on "the list".  Yes there is a list.  Here's a great web site that will tell you all about "them".

"Weeds are native or non-native plants that are unwanted in a particular area at a particular time.  Change the area and the time and the plant might be desirable or even cultivated.
     When weeds become so wide-spread that they threaten crops, livestock, or native species, they may become more than just a "weed".  They may then find themselves on a state list of plants to be attacked in a methodical manner with state support.  They might then be termed "noxious weed",  "invasive species", "exotic species", "alien species", or some similar term as set forth in law by each governing body.  
     These noxious weeds find their way into new areas via boats, planes, soles of shoes, imported animals and agricultural products, etc.  With increasing frequency, these most dangerous of  weeds are causing the extermination of native flora and fauna from larger and larger areas."

Read here for more information:

 Noxious Weeds