Cactus plants

Cactus comes from the Greek word kaktos. That means thorny plants. Was Linnaeus, botanist who made the classification of plants, which include cactus into the group or Cactaceae thistles.

When referring to the history, the cactus has grown to about 100 million years ago. Once cactus has a high figure. Then about 60 million years later, cactus declared extinct. This is due to volcanic eruptions that come drown the American continent, which in fact is where he grew up.

After the volcano volcanic activity stopped, the cactus grows back. But cactus generation "newer" is growing shorter forms of this ancestor. Short forms of cactus that's what we often encounter in the present.

Generally, cactus come from such barren plains of South America and Mexico. These regions have low rainfall with indeterminate frequency. Changes in temperature are also very extreme. There is also the suggestion that the cactus is from Central and South America, Northern Canada to the Galapagos Islands, the Pacific and the tropical islands in the East India and the Caribbean.

Region is highly diverse cactus alive. From the coast that leads to the sea, the jungle clad mountains down to the ice of the Andes. So, it's not uncommon to see a cactus at height 3000 - 4000 m above sea level.

From this fact, including exactly cactus plants can survive in any field. Cactus is easy to adjust and the forms of adaptation to the body. "An example of this adaptation can be seen clearly. If no suitable natural conditions, the size of cactus leaves will shrink or even not at all out of leaves. Be narrowed its roots and stem water storage, "said Joesi since elementary school that had been interested in cactus.

While in the temperate regions of hot and arid soil, cactus adapt to the way the body forms a thick skin and waxy. Not to forget, grow fine hairs or razor-sharp thorns. Its function is obvious, reducing the excretion of water from the body.

In terms of distribution, cactus fruit-eating birds credited to sow the seeds of all places in the world. Even so, people still recognized as a major factor in spreading this plant apart two. The role can be seen when they make the shift places, cactus was never behind in the list of default.