That's a cactus
Cactus
A cactus has no leaves but does have a stem.
a cactus
One of the many cactus species
Spines are better than leaves in the desert primarily because they reduce water loss by minimizing surface area and providing shade to the plant. They also help deter herbivores from consuming the plant, which is crucial in a harsh environment where resources are scarce. Additionally, spines can reflect sunlight, further reducing heat absorption and helping the plant maintain its internal temperature. Overall, spines enhance a plant's survival in the extreme conditions of the desert.
The pointy things on a cactus are called spines.
yes, it is, the leaf of a cacti plant is modified into spines in order to reduce transpiration. This is a method of desert adaptation.
Cacti live in the deserts of the Americas and many have sharp spines. In Africa there are other plants, euphorbias for example, that resemble cacti but have thorns rather than spines.
The ocotillo plant is a common desert plant found in the southwestern United States and Mexico that has thorns but is without leaves. It is known for its long, vertical stems covered in sharp spines, which help reduce water loss and protect the plant from herbivores. The plant produces leaves only after a rainfall to maximize its photosynthetic potential.
they have the spines to protect them from your face
Because they come from desert and they don't need to to much water.
Generically they are called "cactus" plants or "cacti"