# Corryocactus quadrangularis

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***Corryocactus quadrangularis*** is a species of *[Corryocactus](/source/Corryocactus)* found in Peru.[1]

## Description

This species typically grows to a height of 1 to 1.5 meters and branches from its base. Its upright stems, which can sometimes become pendulous, are quadrangular in shape, measuring 4 to 5 cm in diameter. These stems feature 4 to 5 (occasionally up to 6) deep, wavy, wing-shaped ribs. Black, felted [areoles](/source/Areole) on these ribs bear whitish-yellow spines: 1 to 2 strong central spines that are 4 to 6 cm long and 4 to 8 radial spines that are 1 to 2 cm long. The flowers of *Corryocactus quadrangularis* are golden yellow to carmine red and measure 4 to 5 cm in length. Its fruits are reddish-green.[2]

## Distribution

*Corryocactus quadrangularis* is a shrubby cactus native to Peru, commonly found in desert or dry scrub biomes within inter-Andean valleys near Puquio, Ayacucho, at elevations around 3300 meters.

## Taxonomy

Originally described as *Erdisia quadrangularis* in 1957 by [Werner Rauh](/source/Werner_Rauh) and [Curt Backeberg](/source/Curt_Backeberg), the species was later transferred to the genus *Corryocactus* by Ritter, Hunt, Taylor, and Charles in 2006. The specific epithet "quadrangularis" refers to the plant's four-angled stems.[3]

## References

1. ["Corryocactus quadrangularis (Rauh & Backeb.) F.Ritter ex D.R.Hunt, N.P.Taylor & G.J.Charles"](https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77221694-1). *Plants of the World Online*. Retrieved 2026-01-04.

1. Anderson, Edward F. & Eggli, Urs (2005). *Das grosse Kakteen-Lexikon* (in German). Stuttgart (Hohenheim): Ulmer. p. 146-147. ISBN 978-3-8001-4573-7.

1. Eggli, Urs & Newton, Leonard E. (2010-11-30). *Etymological Dictionary of Succulent Plant Names*. Berlin, [Germany] ; Heidelberg, [Germany]: Springer. ISBN 978-3-642-05597-3.

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Adapted from the Wikipedia article [Corryocactus quadrangularis](https://en.wikipedia.org/wiki/Corryocactus_quadrangularis) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Corryocactus_quadrangularis?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.