Cacti play an important role in the desert ecology and are a vital source of food and water for many desert animals. Some cactus species have been utilized by humans since prehistoric times, for various purposes including food and medicinal use. They are also popular as garden and house plants.
Additionally, how would you describe a cactus?
The word cactus describes a type of desert plant that has thick, leafless stems covered in prickly spines or sharp spikes. Cactus plants are able to thrive in dry climates because they store water in their stems. … Some cacti are rich in vitamins, calcium and fibre.
Secondly, what is special about a cactus? Cacti can be distinguished from other succulent plants by the presence of areoles, small cushionlike structures with trichomes (plant hairs) and, in almost all species, spines or barbed bristles (glochids). Areoles are modified branches, from which flowers, more branches, and leaves (when present) may grow.
Consequently, what are 3 adaptations of cactus?
They have:
- Stems that can store water.
- Widespread or very deep root systems that can collect water from a large area or from very deep underground.
- Spines which are modified leaves. …
- Very thick, waxy cuticle to reduce water loss by evaporation .
- Reduced number ofstomata to reduce water loss by transpiration .
