Leaf litters refer to the fallen leaves that accumulate on the ground in forests or on lawns during the autumn season. There are various synonyms for this term, such as leaf litter, leaf mulch, leaf mold, and leaf duff. Leaf litter consists of dead leaves, twigs, and other organic matter that decompose slowly and serve as a natural fertilizer. Leaf mulch is used by gardeners to improve soil health and moisture retention. Leaf mold is a substance that forms when leaf litter decomposes fully, and it is also used to improve soil quality. Leaf duff is another term used to describe the layer of decomposing leaves on the forest floor. These synonyms for "leaf litter" provide a better understanding of its importance in the ecosystem.