Cereus stenogonus

Cereus stenogonus, also known as narrow-angled cereus, is a species of Cereus found in Bolivia, Paraguay and Argentina.[2]

Cereus stenogonus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Cereus
Species:
C. stenogonus
Binomial name
Cereus stenogonus
K.Schum.
Synonyms
  • Piptanthocereus stenogonus (K.Schum.) F.Ritter 1979
  • Cereus argentinensis Britton & Rose 1920
  • Cereus dayamii Speg. 1911
  • Cereus platygonus Speg. 1911
  • Cereus roseiflorus Speg. 1925
  • Cereus tacuaralensis Cárdenas 1964
  • Piptanthocereus dayamii (Speg.) F.Ritter 1980

Description
Budding flowers

Cereus stenogonus grows tree-like with sparse to richly branched, upright shoots and reaches heights of up to 8 meters. There is a clear, heavily thorn trunk. The cylindrical, blue-green shoots are later light glaucous green and have a diameter of 6 to 9 centimeters. There are four to five deeply notched, high ribs . The areoles sitting in the notches are far apart. The usually three to four spreading, conical thorns emerging from them are thick to onion-shaped at their base. They are yellow with a black tip or black and up to 7 millimeters long.[3]

The slightly pink flowers are 20 to 22 centimeters long. The egg-shaped fruits are up to 10 centimeters long and red. They contain a red pulp.

Distribution

Cereus stenogonus is distributed in Brazil, Mato Grosso do Sul, Bolivia, Paraguay and the Argentine provinces of Chaco, Corrientes and Misiones up to 500 meters above sea level. The first description was published in 1899 by Karl Moritz Schumann.[4]

In the IUCN Red List of Threatened Species, the species is listed as "Least Concern" (LC).[1]

Taxonomy

The first description was published in 1899 by Karl Moritz Schumann. A nomenclatural synonym is Piptanthocereus stenogonus (K.Schum.) F.Ritter (1979).

References
  1. "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-21. Retrieved 2023-08-10.
  2. "Cereus stenogonus". Tropicos. Retrieved 2019-08-22.
  3. Killeen, TJ, E. García Estigarribia & SG Beck. (eds.) 1993. Guide Árb. Bolivia 1–958. National Herbarium of Bolivia & Missouri Botanical Garden, La Paz.
  4. López, JA & JEL Little. 1987. Common Trees of Paraguay 1–425. Peace Corps, Information Collection and Exchange, Washington, DC
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