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Flexible [ Botany  ]

Dictionary of botanic terminology - index of names

Synonyms:  Flexile, flexuous,  Plastic, Pliant, Pliable
Antonym: Stiff, Rigid, Inflexible 
Adverb: Pliably
Noun: Flexibility, Flexure, Flexibleness ( bounce, ductility, elasticity,  malleability, malleableness, plasticity, pliability, pliableness, pliancy, pliantness)
       
  Flexible. Capable of being bent without breaking or injury under the influence of an outside force.  
  Flexibility: The property of being flexible; easily bent or shaped. Flexibility is the inverse of stiffness.  
  Flexibleness The quality or state of being flexible  
 
The flexibility is the property of being bent When a force is applied to a structure, there is a displacement in the direction of the force; flexibility is the ratio of the displacement divided by the force. High flexibility means that a small load produces a large displacement.
     
To Flex [ Transitive and  intransitive verb  ]  
( Flexed, flexing, flexes )
     
. The act of bending or putting something in a state of flexion.  
   
     

 


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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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