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Echinopsis thionantha (Speg.) D.R.Hunt
Bradleya 5: 92 (1987)
Family: CACTACEAE

Acanthocalicium (Echinopsis) thionanthum P144 Punta de Ballasto 2100m
Acanthocalicium (Echinopsis) thionanthum P144 Punta de Ballasto 2100m
The specific name ''thionanthum'' means ''sulphur yellow flowers'' and it was originally applied to the yellow flowering form of this very variable taxon, but now - with the the name ''Acanthocalycium (Echinopsis) thionantum'' - the botanists identify a very variable, poliformic complex of plant (previously classified as separate, species, variety and forms) with variable colour of flowers and spines sizes.

Synonyms:

See all synonyms of Echinopsis thionantha
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Accepted name in llifle Database:
Echinopsis thionantha (Speg.) D.R.Hunt
Bradleya 5: 92 (1987)
Synonymy: 19
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Subspecies, varieties, forms and cultivars of plants belonging to the Echinopsis thionantha complex

This Taxon has lots of synonyms (like many other cacti), with several controversial varieties and subspecies, and comprises a multitude of different forms, but where each form is linked to others by populations of plants with intermediate characteristics):

  • Acanthocalycium griseum Backeb.: The characteristic epidermis of this form is green to dark blue grey and become clear powdery-grey in the older part of the stem (like some Copiapoa)
  • Echinopsis (Acanthocalicium) thionantha var. copiapoides.Acanthocalycium thionanthum var. copiapoides Piltz: The variety "copiapoides" has comparatively clearer grey-blue epidermis and looks like some plant of the genus Copipaoa.
  • Acanthocalicium (Lobivia) thionanthum var. brevispinum.Echinopsis brevispina (F.Ritter) H.Friedrich & G.D.Rowley: The variety "brevispinum" has comparatively short but strong sharp spines.
  • Acanthocalicium chionanthum P67  Portrero 2500m, Salta, Argentina.Echinopsis chionantha (Speg.) Werderm.: This is the white flowering form of Echinopsis thionantha.
  • Acanthocalicium (Echinopsis) thionanthum P144 Punta de Ballasto 2100mEchinopsis thionantha (Speg.) D.R.Hunt: The specific name "thionanthum" was originally applied to the yellow flowering form, but now comprises plant of variable colour of flowers and spines sizes.


20112 julio Julio C. García
Echinopsis thionantha Photo by: Julio C. García
8370 valentino Valentino Vallicelli
Echinopsis thionantha Photo by: Valentino Vallicelli

7641 valentino Valentino Vallicelli
Echinopsis thionantha Photo by: Valentino Vallicelli
40 cactus-art Cactus Art
Echinopsis thionantha Photo by: Cactus Art

43 valentino Valentino Vallicelli
Echinopsis thionantha Photo by: Valentino Vallicelli
7642 valentino Valentino Vallicelli
Echinopsis thionantha Photo by: Valentino Vallicelli

39 cactus-art Cactus Art
Echinopsis thionantha Photo by: Cactus Art
41 cactus-art Cactus Art
Echinopsis thionantha Photo by: Cactus Art

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