These spectacular plants are capable of surviving for months without rain. The ribs running down their bulky trunks adapt to survive in dry climates, allowing them to expand and contract in accordance to their water absoption needs.
These large succulents look like cacti but they actually belong to the rubber tree family. They produce tonic latex to protect themselves against hungry predators that may want to munch into their moisture-rich tissues.
The Brazilian species of Turk's Cap (Melocatcus spp.) is an amazing sight. It starts off as a green and shiny ball but when it is about to flower, a special structure resembling a cap develops on top of the plant, hence its name.
Among the different types of Pincushion (Mammilllaria spp.) cacti displayed are these special horticultural cultivars (Mammilllaria elongata 'Monstruosa'). Selected from plants that have lost their ability to grow in length, these plants become 'cristate', growing sideways instead to create this curious brain-like cacti.
Cacti are mostly from the Americas, while succulent Euphorbias come from Africa and Madagascar.
Drinkable water is difficult to extract from a cactus, as it is stored within the plant's tissue.
Cacti get their name from the Greek word "kaktos", which means "thistle".
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