Weepwood Leaves grow on weeping-willow-like moss-covered Weepwood-trees with Weepwood Flowers in Swamplands. Blocks of Weepwood leaves can be harvested/pulled with your arctek-gauntlet without needing any Power Cells. If you use Stone Mining Cells or better to pull leaves, these stronger Power Cells will not even lose durability. Weepwood Leaves can be used as Fuel for the Forge, however 4 blocks of leaves are needed and used up for each melting-/hardening-process. Also each melting-/hardening process in the forge will take quite long when you use leaves as fuel.