Subject: Is marijuana (hemp) a dangerous invasive species for environment?

One of the worst problems for the lost of species all over the world, which is 
ocurring at a rate comparable to the rate of species lost when dinosaurs die, 
so scientists say that we are right now in a global "mass extcintion" event, 
one of the main problems causing this mass extinction is the introduction of 
foreing "invader" species of all kind (animal, plant, microbes, etc) that 
produce local species loose, my question is intented to give some light to know 
if cannabis sativa, cannabis indica, or any type of hemp, is an "invasive" 
species dangerous for environment, and at which degree -if it is highly 
invasive or difficult to spread qiuickly, etc, when you introduce some hemp to 
any environment. I have searching for this information on the web, but after 2 
days i gave up and I am here asking scientist in my quest.
Thank you -Rafael Leal (Venezuela)

Re: Is marijuana (hemp) a dangerous invasive species for environment?