What is the cactus?please?

Question

What is the cactus?please?

Answer 1

what is the question, please?

Answer 2

Cacti are succulent xerophytes. Succulents are plants that store large quantities of water in their leaves, stems, or roots, giving them a fleshy (succulent) character. Many succulent plants grow in drought-prone, nearly arid climates or physiologically dry soil (e.g. frequently frozen or partially or periodically salty soils). This involves adaptations that enable them to make do with a minimal amount of available water, and to survive long periods without rainfall. In botanical ecology, plants with these qualities are called xerophytes.

Terrestrial plants have three organ systems: the shoots, the roots and the leaves. In cacti however, these systems have undergone extreme evolutionary modification as a means of adaptation to droughty conditions. Leaves have been sublimated to spines (to reduce water loss), stems evolved succulence to store water and nutrients; and they gained chlorophyll to supplant the leaves in photosynthesis. Typically, the root systems are shallow and wide-spreading to provide maximum access to water from dew, mists or sparse rainfall.

Answer 3

The fact that you have asked this question in Botany section and that you are a new member of yahoo fraternity ; I take that you want some information on Cactus ( Cacti is plural) type of plants .

If this is correct , then just click on the links below and read the information.--

http://en.wikipedia.org/wiki/Cactus

Some basic information is given below -

'Cacti are distinctive and unusual plants, which are adapted to extremely arid and hot environments, showing a wide range of anatomical and physiological features which conserve water.'

' Their stems have expanded into green succulent structures containing the chlorophyll necessary for life and growth, while the leaves have become the spines for which cacti are so well known.'

'The cacti are succulent plants that grow either as trees, shrubs or in the form of ground cover. Most species grow on the ground, but there is also a whole range of epiphytic species.'

Now , just click on the links below to see some cacti pictures -

http://en.wikipedia.org/wiki/Desert_Gard...