Switchgrass (Panicum virgatum). Switchgrass is a good candidate for bioenergy,especially ethanol fuel | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Ausmus, Stephen / US Department of Agriculture |
Taille de l’image : | 2662 px × 3200 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |