Cactus, deriving from the family Cactaceae, has over 1750 known species. It is popularly known that cacti are perfect for areas with intense humidity. It is the perfect drought-tolerant, ornamental plant and can thrive in deserted areas.
Cacti are found in all shapes and sizes.
Almost all cacti are succulents with the capability of storing water. However, the stem is the only part of most cacti where the process takes place. Most cacti lose their true leaves and retain only spines which act as a defense against herbivores. Spines, produced from areoles, also help prevent water loss by reducing air flow, provide shade and the areoles give rise to flowers.