The waxy cuticle is a protective layer found on the surface of many plant leaves and stems. It is made of a waxy substance that helps reduce water loss by preventing evaporation. This layer is especially important for plants in dry environments, as it helps them retain moisture and survive in harsh conditions. In addition to conserving water, the waxy cuticle also serves as a barrier against pests and diseases. By covering the plant's surface, it helps protect against harmful insects and pathogens, contributing to the overall health and resilience of the plant.