In the stems. It grows it's roots far out to get nutrients and water from the soil.
stem and roots
Water is stored in tissue in the stem of the cactus.
How much of the cactus plant is water depends upon the size of the cactus and the amount of water in moving, processing and stored forms. But no matter the cactus' size and regardless of how much or little water that it holds, the cactus devotes over 90% of its inside body parts to handling, circulating and building up supplies of water.
in the body of a catus, water is stored as not much rain falls where a cactus so water is stored to prevent the cactus from dying out. there are thorns on cacti to prevent it from being eaten by a predator.
Barrel cacti have an extensive root system that is used to take in water during rainy periods. The water is then stored in the tissues of the plant for drought periods.
As a cactus is a form of a plant, it will require sunlight for photosynthesis and water to stop it from drying out and to help the cactus plant grow.
A cactus?
Water, dissolved nutrients, and byproductsof photosynthesis are stored in the cactus stem. The water and the dissolved nutrients are sent up into the stem from the cactus plant's roots. They're held in the stem until they can be used in the photosynthetic interaction with sunlight. From that interaction are made the energizing carbohydrates, starches and sugars that the cactus needs for such activities as flowering, fruiting, growing, reproducing, and responding to stresses and stressors.
a cactus holds water the most
many desert plants like the barrel cactus , supply water with its leaves, specific "barrel" shape, etc which will let it thrive on its water that it stored
Cacti get water from rainwater that is stored in the special roots of the cacti
The water from the cactus could be cleaner.
Not really