Cactus plants grow in relatively arid climates, and they retain water more efficiently by having thicker structures with a higher proportion of volume to surface area than you would find in other types of plants.
Cactus
Cactus plants use their stems for storage. So that's where starches are stored. In fact, stems are where a cactus plant stores everything. Other, non cactus plants may use their roots for storage. But cactus roots are much too fibrous and shallow.
why are underground stems usually swollen? why are underground stems usually swollen?
They are succulent plants, having thick fleshy leaves or stems to store water
they store water in their stems,forexample, cactus plant
sugarcane
In terms of liquids, cactus plants have water and watery products and solutions inside their stems. For example, their stems hold and process nutrient solutions and water from the dissolved nutrients and water that their roots take in from the soil. They have energizing photosynthetic products from the interaction of the green stem with sunlight.
Cactus plants hold water temporarily in their roots. They also hold it temporarily on their modified leaves. They hold it permanently in their stems.
Cactus plants hold water temporarily in their roots. They also hold it temporarily on their modified leaves. They hold it permanently in their stems.
Succulent plants have adapted to dry, arid conditions, by storing water in its fleshy leaves and swollen stems.
Cactus plants belong to the group of succulent plants, which are characterized by their ability to store water in their stems, leaves, or roots. Succulent plants have adapted to arid environments, making them well-suited to survive in conditions with limited water availability.
While cacti do store some water in the tissues of their stems, the belief that one only as to cut open a cactus to find drinking water is a myth. Not only that, many cacti have toxic substances in their tissues which would make you sorry you ever ate a cactus.