One of the many cactus species
a cactus
That's a cactus
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.
Yes, sharp spines on plants are an adaptation that helps deter herbivores from feeding on them. These spines can act as a physical barrier to protect the plant from being eaten. Additionally, sharp spines can also help to reduce water loss by reducing surface area on the plant.
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.
The pointy things on a cactus are called spines.
Cactus
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.
Generically they are called "cactus" plants or "cacti"
One common succulent plant with thorns in desert biomes is the Barrel Cactus (Ferocactus). This plant has thick stems covered in sharp spines that help protect it from predators. Another example is the Ocotillo (Fouquieria splendens), which is a spiny desert succulent that grows long, thorny branches.
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.
Sharp spines can limit the surface area available for photosynthesis, reducing the plant's ability to produce energy. Additionally, spines can potentially injure animals, making it harder for them to access the plant for pollination or seed dispersal. Lastly, spines can also limit the amount of shade a cactus can provide for other plants in its environment.