# Denmoza

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Species of cactus

Denmoza Conservation status Least Concern (IUCN 3.1)[1] Scientific classification Kingdom: Plantae Clade: Embryophytes Clade: Tracheophytes Clade: Spermatophytes Clade: Angiosperms Clade: Eudicots Order: Caryophyllales Family: Cactaceae Subfamily: Cactoideae Genus: Denmoza Britton & Rose[3] Species: D. rhodacantha Binomial name Denmoza rhodacantha (Salm-Dyck) Britton & Rose[2] Synonyms[2][4] Cactus coccineus Gillies ex Loudon Cereus erythrocephalus (K.Schum.) A.Berger Cereus rhodacanthus (Salm-Dyck) F.A.C.Weber Cleistocactus rhodacanthus (Salm-Dyck) Lem. Denmoza ducis-pauli (C.F.Först. ex Rümpler) Werderm. ex Backeb. Denmoza erythrocephala (K.Schum.) A.Berger Denmoza rhodacantha var. diamantina Slaba Denmoza strausii var. luteispina Frič Echinocactus coccineus Pfeiff. Echinocactus rhodacanthus Salm-Dyck Echinocactus rhodacanthus var. coccineus Monv. ex Labour. Echinopsis ducis-pauli C.F.Först. ex Rümpler Echinopsis rhodacantha (Salm-Dyck) Salm-Dyck Furiolobivia ducis-pauli (C.F.Först.) Y.Itô Lobivia ducis-pauli (C.F.Först.) Borg Mammillaria coccinea G.Don Pilocereus erythrocephalus K.Schum. Pilocereus rhodacanthus (Salm-Dyck) Speg. Pseudolobivia ducis-pauli (C.F.Först.) Krainz

***Denmoza*** is a [monotypic](/source/Monotypic_taxon) genus of [cactus](/source/Cactus) with the sole species ***Denmoza rhodacantha***,[5] [synonym](/source/Synonym_(taxonomy)) ***Echinopsis rhodacantha***, native to northwest Argentina.[2]

## Description

*Denmoza rhodocantha* starts out as a globular cactus and stays that way for quite some time before growing into a 0.5 to 1.5 m (1.5 to 5 ft) column with a diameter of 20 to 30 cm (8 to 12 in).[6] The 30 or more ribs are high and wide, with a width of 1 cm (0.4 in) at the base. The first areoles are confluent and bear brownish-red spines, later grey. The 8 to 10 radial spines are slightly bent. The areoles from which the flowers sprout also produce a series of long brown bristles as well as long spines up to 7 cm (2.8 in). The tubular flowers are scarlet. The fruits are spherical and contain shiny black-brown seeds with a diameter of about 1.3 mm (0.05 in).[7][8]

		- Spines

		- Plant grown in University of California Botanical Garden

		- Plant growing in habitat in [Uspallata](/source/Uspallata), Argentina

## Taxonomy

The first plants were probably discovered in 1821 by John Gilles near the city of Mendoza. They were given the name *Cactus coccineus*, but this has never been validly published. The species was first described as *Echinocactus rhodacanthus* in 1834 by [Joseph zu Salm-Reifferscheidt-Dyck](/source/Joseph_zu_Salm-Reifferscheidt-Dyck).[2][9] [Nathaniel Lord Britton](/source/Nathaniel_Lord_Britton) and [Joseph Nelson Rose](/source/Joseph_Nelson_Rose) transferred the species to their newly established genus *Denmoza* in 1922.[2][10] As of November 2025[\[update\]](https://en.wikipedia.org/w/index.php?title=Denmoza&action=edit), [Plants of the World Online](/source/Plants_of_the_World_Online) accepted the placement in *Denmoza*.[2]

## Distribution

*Denmoza rhodacantha* is found in northwestern and western [Argentina](/source/Argentina) on the eastern slopes and foothills of the Andes in the provinces from Mendoza to Salta at altitudes of 800 to 2800 meters.[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*]

		- Plate as *Echinopsis rhodocantha* in Blühende Kakteen - Iconographia Cactacearum Tafel 16 (1904)

		- As *Echinopsis rhodocantha* from The Cactaceae (1919-1923) by Britton et Rose, Vol. III. (1922)

		- A hybrid with *[Cleistocactus strausii](/source/Cleistocactus_strausii)*, [Huntington Desert Garden](/source/Huntington_Desert_Garden)

## References

1. **[^](#cite_ref-iucn_1-0)** Méndez, E.; Ortega-Baes, P. (2017) [amended version of 2013 assessment]. ["*Denmoza rhodacantha*"](https://www.iucnredlist.org/species/152121/121459048). *[IUCN Red List of Threatened Species](/source/IUCN_Red_List)*. **2017** e.T152121A121459048. [doi](/source/Doi_(identifier)):[10.2305/IUCN.UK.2017-3.RLTS.T152121A121459048.en](https://doi.org/10.2305%2FIUCN.UK.2017-3.RLTS.T152121A121459048.en). Retrieved 25 July 2025.

1. ^ [***a***](#cite_ref-POWO_77875-2_2-0) [***b***](#cite_ref-POWO_77875-2_2-1) [***c***](#cite_ref-POWO_77875-2_2-2) [***d***](#cite_ref-POWO_77875-2_2-3) [***e***](#cite_ref-POWO_77875-2_2-4) [***f***](#cite_ref-POWO_77875-2_2-5) ["*Denmoza rhodacantha* (Salm-Dyck) Britton & Rose"](http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:77875-2). *[Plants of the World Online](/source/Plants_of_the_World_Online)*. [Royal Botanic Gardens, Kew](/source/Royal_Botanic_Gardens%2C_Kew). Retrieved 2025-11-17.

1. **[^](#cite_ref-IPNI_296726-2_3-0)** ["*Denmoza* Britton & Rose"](http://www.ipni.org/ipni/idPlantNameSearch.do?id=296726-2). *[The International Plant Names Index](/source/International_Plant_Names_Index)*. Retrieved 2025-11-17.

1. **[^](#cite_ref-4)** ["*Denmoza rhodacantha* (Salm-Dyck) Britton & Rose"](http://www.worldfloraonline.org/taxon/wfo-0000641586). *[World Flora Online](/source/World_Flora_Online)*. Retrieved 2025-11-17.

1. **[^](#cite_ref-POWO_296726-2_5-0)** ["*Denmoza* Britton & Rose"](http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:296726-2). *[Plants of the World Online](/source/Plants_of_the_World_Online)*. [Royal Botanic Gardens, Kew](/source/Royal_Botanic_Gardens%2C_Kew). Retrieved 2025-11-17.

1. **[^](#cite_ref-6)** ["Denmoza rhodocantha"](http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/7993/Denmoza_rhodacantha). Retrieved 21 October 2017.

1. **[^](#cite_ref-Anderson_Eggli_2005_p._177-178_7-0)** Anderson, Edward F.; Eggli, Urs (2005). *Das grosse Kakteen-Lexikon* (in German). Ulmer. pp. 177–178. [ISBN](/source/ISBN_(identifier)) [3-8001-4573-1](https://en.wikipedia.org/wiki/Special:BookSources/3-8001-4573-1).

1. **[^](#cite_ref-Backeberg_1983_p._1043–1048._8-0)** Backeberg, Curt (January 1983). *Die Cactaceae : Handbuch der Kakteenkunde. 2. Cereoideae: (Hylocereeae - Cereeae [Austrocereinae])* (in German). Fischer. pp. 1043–1048. [ISBN](/source/ISBN_(identifier)) [3-437-30381-3](https://en.wikipedia.org/wiki/Special:BookSources/3-437-30381-3).

1. **[^](#cite_ref-Arnz_1834_p._341_9-0)** [*Hortus dyckensis: ou catalogue des plantes cultivées dans les jardins de Dyck*](https://books.google.com/books?id=8ZsCAAAAYAAJ&pg=PA341) (in French). Arnz. 1834. p. 341. Retrieved 2023-08-26.

1. **[^](#cite_ref-Britton_Eaton_Rose_Wood_1919_p._10-0)** Britton, Nathaniel Lord; Eaton, Mary E.; Rose, J. N.; Wood, Helen Adelaide (1919). *The Cactaceae: descriptions and illustrations of plants of the cactus family*. Washington: Carnegie Institution of Washington. [doi](/source/Doi_(identifier)):[10.5962/bhl.title.46288](https://doi.org/10.5962%2Fbhl.title.46288).

Taxon identifiers Denmoza Wikidata: Q8176532 Wikispecies: Denmoza BioLib: 105578 CoL: 4379 EoL: 5188729 GBIF: 7282263 GRIN: 3511 iNaturalist: 129867 IPNI: 296726-2 IRMNG: 1048597 ITIS: 906978 NCBI: 432449 Open Tree of Life: 93856 POWO: urn:lsid:ipni.org:names:296726-2 Tropicos: 40023761 WFO: wfo-4000011135 Denmoza rhodacantha Wikidata: Q136899 Wikispecies: Denmoza rhodacantha CoL: 6CKL9 EoL: 5188732 GBIF: 7282272 GRIN: 13539 iNaturalist: 129847 IPNI: 77875-2 ITIS: 907845 IUCN: 152121 NCBI: 432450 Open Tree of Life: 668194 Plant List: kew-2761252 POWO: urn:lsid:ipni.org:names:77875-2 Species+: 27771 Tropicos: 5104358 WFO: wfo-0000641586 Echinopsis rhodacantha Wikidata: Q134572971 Wikispecies: Echinopsis rhodacantha POWO: urn:lsid:ipni.org:names:132779-1 Echinocactus rhodacanthus Wikidata: Q12095268 CoL: 38GJL GBIF: 3960430 GRIN: 14810 IPNI: 311712-2 ITIS: 910552 POWO: urn:lsid:ipni.org:names:311712-2 Tropicos: 5104357 WFO: wfo-0000660871

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