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Longevity   [ Biology ]
Synonym: Long-livedness
Adjective: Longevous, Longeval

Dictionary of botanic terminology - index of names

     
  Longevity is a long life or existence.  
     
The persistence of an individual for longer than most members of its species, or of a genus and/or species over a prolonged period of geological time.

The longevity is also the length or duration of life of an organism (life expectancy); in plants annual, biennial or perennial. Various factors contribute to an individual's longevity. Significant factors in life expectancy include genetics, environmental condition, growing condition, healthiness, nutrient availability.
Longevous (long lived)  plant species will live a long time after establishment but usually establish slowly (as compared to fast growing and short lived species) and once established, they will be content in their position and with their soil for years.
They are often found in habitat characterized by barren inhospitable climate (like deserts, artic regions, high mountain habitats, etc. ) many of them are small sized and grow extremely slowly;

Compare to survivorship
     

 

 

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