This work aims to characterize pine needles as a fuel for a better understanding of the behaviour of forest fuels in wildland fires. It does this in two ways: classify vegetation as a fuel for forest fires and understand the role of transport mechanisms in fuel beds. For this purpose, the physical and chemical characteristics of each fuel are taken into account. Three species of pine needles were studied: Pinus halepensis, Pinus pinaster and Pinus laricio. These were chosen because they are representative of the Mediterranean ecosystem and present different characteristics such as surface-to-volume ratio and chemical composition.