They adapt some of their “body” parts to be able to stock water:

• Trunk and stems: Cactis, euphorbs, stapeliads, baobabs, etc… produce huge fleshy and sponge-like trunks and stems to absorb and stock water as fast as they can.
• Leaves: Agaves, mesembs, senecio and aloes have very flesh leaves to stock water.
• Roots: Many trees has a very extended root system to conserve and absorb water in the desert. Many other plants such as bulb/tuberous plants (Irises, Tulips, Gladiolus, etc…) produce subterranean organs to stock water.
• Skin: Most of desert plants has their leaves and stems covered with hairs, velvet, powder or spikes to limit sun explosure.