In this Monday, Oct. 1, 2012 photo, farming director Sam Brake walks through a test plot of Arundo donax near the Biofuels Center of North Carolina in Oxford, N.C. It's fast-growing and

 

              In this Monday, Oct. 1, 2012 photo, farming director Sam Brake walks through a test plot of Arundo donax near the Biofuels Center of North Carolina in Oxford, N.C. It
In this Monday, Oct. 1, 2012 photo, farming director Sam Brake walks through a test plot of Arundo donax near the Biofuels Center of North Carolina in Oxford, N.C. It's fast-growing and drought-tolerant, producing tons of biomass per acre. It thrives even in poor soil and is a self-propagating perennial, so it requires little investment once established. To people in the renewable fuels industry, Arundo donax is a miracle. But to scientists and environmentalists, Arundo looks like a nightmare waiting to happen. Officials in at least three states have banned the bamboo-like grass as a "noxious weed." (AP Photo/Allen Breed)