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Origin [ Botany - BiologyEcology  ]
Synonym:
Provenance

Dictionary of botanic terminology - index of names

     
 

Regarding a plant  the origin is the natural place or locality where it comes from (from which it originates).

 
     
If the wild plant species was believed to have been originally present in a given area it is referred to as a Native. If the plant was introduced in some way subsequent to man's colonization it is referred to as introduced.
Regarding cultivated varieties (cultivars) the origin indicates the place, person or organization who "created" and selected the new plant  variety.
     
Origin [ Botany - Anatomy  ]
     
 

Beginning point of development or intersection of a plant part or organ, the anterior end of the base;  the end of the base nearest the axis of origin

 
     

 


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Holdfast roots  [ Botany  ]

Dictionary of botanic terminology - index of names

 
     
  Some species of climbing plants develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place.  
     
Climbing plants, like the poison ivy (Toxicodendron radicans), Boston ivy (Parthenocissus tricuspidata), and trumpet creeper (Campsis radicans),  develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place. Usually the Holdfast roots die at the end of the first season, but in some species they are perennial. In the tropics some of the large climbing plants have hold-fast roots by which they attach themselves, and long, cord-like roots that extend downward through the air and may lengthen and branch for several years until they strike the soil and become absorbent roots.

Major references and further lectures:
1) E. N. Transeau “General Botany” Discovery Publishing House, 1994
     

 

 

 

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