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Best definition and characteristics of cactus and with some important genera
Horticulture

Best definition and characteristics of cactus and with some important genera

Musa March 13, 2019

Contents

  • 1 Definition and characteristics of cactus
    • 1.1 Definition of cacti
    • 1.2 Characteristics of cacti
    • 1.3 Genera of Cacti
    • 1.4 Some important Cacti

Definition and characteristics of cactus

 

Definition of cacti

 
Cacti (singular – cactus) are a group of plants with peculiar shape and size and mostly adopted for desert life. The adverse environment has made this plants unusual in appearance and provided morphological, anatomical and physiological safeguard to thrive and flourish under such condition.
 

Characteristics of cacti

 
All the plants under Cactaceae family have the following characteristics.
 
      1.      Areoles or spine – cushions are present.
2.      All are perennial plants.
3.      The fruits are one – called berry.
4.      The flower petals arise from the top of the ovary.
5.      The plants of the cacti groups usually are almost leafless except; Genus: Pereskia have leaves which are not visible.
6.      The plants are in dicotyledonous group.
7.      The stems are globular or ovoid or cylindrical, very fleshy, usually with many ribs, acute or rounded, straight wavy or spiral.
8.      The flowers are borne on the areoles at the top or at the sides. The largest and the first flowers of the Cactaceaeare mostly nocturnal.
 

Genera of Cacti

 
Pereskia, Echinopsis, Rebutia, Lobivia, Echinocactus, Astrophytum and Lopophora.
 

Some important Cacti

 
      1.      Astrophytum asterias
2.      A. myriostigma
3.      A. capricorne
4.      Oreocereus celsianus
5.      O. hendrick
6.      Epiphyllum phyllanthus
7.      E. strictum
8.      Espostoa lanata
9.      Parodia microsperma
10.  Pereskia grandiflora
11.  P. aculeate
12.  Rebutia deminuta
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About The Author

Musa

I'm studying plant pathology. I have completed my Bachelor of Science in Agriculture degree.

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