Name two plant adaptations that lower transpiration

Two plant adaptations that reduce transpiration are thick cuticle and sunken stomata. The thick, waxy cuticle forms a protective layer on the leaf surface that minimizes water loss, while sunken stomata are located in small pits that help trap moisture, creating a humid environment and slowing down evaporation.

Examples of Adaptations That Reduce Transpiration

• Thick Cuticle: A thick, waxy coating on the leaf’s surface prevents excessive water from escaping into the air.
• Sunken Stomata: Stomata located in small pits or grooves trap water vapor, reducing the rate at which it diffuses out of the leaf.
• Reduced Leaf Size: Smaller or needle-like leaves (or even spines) decrease the surface area available for water loss through transpiration.
• Leaf Hairs (Trichomes): Tiny hairs on the leaf surface hold a layer of moist air close to the stomata, helping to limit water evaporation.
• Rolled Leaves: Some plants roll their leaf edges inward, creating a humid pocket around the stomata to further reduce water loss.