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Spineless  [ Botany ]

Dictionary of botanic terminology - index of names

Synonyms: Thornless
Antonym: Spinous, Spiny, Spinescent
Adverbbs: Spinelessly
Noum: Spine lessness
     
  Of a plant, or plant part lacking spines.  
     


Astrophytum asterias

A spineless cactus species

For example spineless cacti, as the name implies, are cacti that usually have no large, visible spines.

Some species of cacti are typically spineless (e.g. Astrophytum asterias) or while other have natural spineless variety or form (e.g. Echinocereus triglochidiatus var. inermis).
But nowadays a number of spineless cultivar has been selected among normally spiny species and are available (e.g. Ferocactus glaucescens forma nuda).

 


Echinocereus triglochidiatus
var. inermis

Some spineless cactus does have tufts of hairs in the areoles (e.g. Lophophora williamsii) or hazardous glochids , tiny spines that brush off easily into the skin (e.g Opuntia basilaris)
 

Ferocactus glaucescens nudum
Ferocactus glaucescens "inermis"
an horticultural spineless selection.


Lophophora williamsii


Opuntia basilaris

     

 


 



 

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