What is the structural role of the thick, fleshy leaves of *Ipomoea pes-caprae*?

They are structurally evolved to excel at moisture retention in arid, saline beach environments.

The Beach Morning Glory, *Ipomoea pes-caprae*, thrives in challenging coastal habitats, such as sandy beachfronts. Its survival in these arid and saline conditions is facilitated by its physical structure, namely its thick, fleshy leaves. These leaves are specifically noted for being structurally evolved to excel at retaining moisture, which is a vital trait allowing the plant to manage water scarcity inherent to its ecosystem. This structural adaptation is distinct from the medicinal preparations derived from its leaves, such as the anti-inflammatory poultice, or the uses associated with other *Ipomoea* species.