Lignocellulose in the cell walls of potential bioenergy crops like switchgrass (pictured) or other plant material has the potential to provide biofuels that yield the same energy as gasoline and can be easily distributed through the existing pipeline and gas station infrastructure, provided it can be efficiently broken down into its constituent sugars.
Credit or Source: Roy Kaltschmidt, Lawrence Berkeley National Laboratory
US DOE. 2009. Bioenergy Research Centers: An Overview of the Science, DOE/SC-0116, US Department of Energy. (p. 14)