Setiechinopsis

Setiechinopsis is a monotypic genus of cacti. Its only species, Setiechinopsis mirabilis, is native to Argentina.[3][4]

Setiechinopsis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Subtribe: Trichocereinae
Genus: Setiechinopsis
Backeb. ex de Haas
Species:
S. mirabilis
Binomial name
Setiechinopsis mirabilis
(Speg.) Backeb. ex de Haas
Synonyms

Of Setiechinopsis:[2]

  • Acanthopetalus Y.Itô

Of Setiechinopsis mirabilis:[3]

  • Acanthopetalus mirabilis (Speg.) Y.Itô
  • Arthrocereus mirabilis (Speg.) W.T.Marshall
  • Echinopsis mirabilis Speg.

Description

Setiechinopsis mirabilis grows singly. The cylindrical, dull yellowish-green to brown-green shoots reach heights of 12 to 15 centimeters with a diameter of up to 2 centimeters. There are eleven ribs that are slightly wavy. The single, protruding and straight central spine is 1 to 1.5 centimeters long. The nine to 14 radial spines are slender and straight.

The narrow, tubular, white flowers appear near the tips of the shoots and are rather unpleasantly scented. They are 11 to 12 centimeters long. Their bracts are spread out. The fruits reach a diameter of 0.6 to 1 centimeter and are 3.5 to 4 centimeters long.[5]

Taxonomy

The first description of the species as Echinopsis mirabilis by Carlos Luis Spegazzini was published in 1905.[3][6] The specific epithet mirabilis comes from Latin, means 'wonderful' and refers to the appearance of the species. De Haas placed the species in the genus Setiechinopsis in 1940.[3]

Distribution

Setiechinopsis mirabilis is distributed among lowland shrubs at 500 to 1000 meters in the Argentine provinces of Santiago del Estero, San Juan, La Rioja and Mendoza.

References
  1. "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-21. Retrieved 2023-09-25.
  2. "Setiechinopsis Backeb. ex de Haas". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-09-29.
  3. "Setiechinopsis mirabilis (Speg.) Backeb. ex de Haas". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-09-29.
  4. "Echinopsis mirabilis". Tropicos. Retrieved 2019-08-22.
  5. Anderson, Edward F.; Eggli, Urs; Anderson, Edward F. (2005). Das große Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 237. ISBN 3-8001-4573-1.
  6. Aires., Museo Nacional de Buenos (1905). "Anales del Museo Nacional de Buenos Aires". Impr. de Juan A. Alsina. Retrieved 2023-09-29.
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