Denmoza
{{Short description|Species of cactus}}
{{Speciesbox
| image = Denmoza rhodacantha 1.jpg
| image_caption = D. rhodacantha
| status = LC
| status_system = IUCN2.3
| display_parents = 3
| taxon = Denmoza rhodacantha
| parent_authority = Britton & Rose
| authority = (Salm-Dyck) Britton & Rose
| synonyms =
{{Species list
|Cereus erythrocephalus|(K.Schum.) A.Berger
|Cleistocactus rhodacanthus|(Salm-Dyck) Lem.
|Denmoza erythrocephala|(K.Schum.) A.Berger
|Denmoza rhodacantha var. diamantina|Slaba
|Echinocactus coccineus|Pfeiff.
|Echinocactus rhodacanthus|Salm-Dyck
|Echinopsis rhodacantha|(Salm-Dyck) Salm-Dyck
|Mammillaria coccinea|G.Don
|Pilocereus erythrocephalus|K.Schum.
|Pilocereus rhodacanthus|(Salm-Dyck) Speg.
}}
| synonyms_ref = {{Cite POWO|title=Denmoza rhodocantha (Salm-Dyck) Britton & Rose|id=77875-2|access-date=2023-10-08|mode=cs1}}
}}
Denmoza is a monotypic genus of cacti. Its only species, Denmoza rhodacantha, is native to northwest Argentina.{{Cite POWO|title=Denmoza Britton & Rose|id=296726-2|access-date=2023-10-08|mode=cs1}}
Description
Denmoza rhodocantha starts out as a globular cactus and stays that way for quite some time before growing into a {{cvt|0.5|to|1.5|m|ft|round=0.5}} column with a diameter of {{cvt|20|to|30|cm|in|0}}.{{Cite web|url=http://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/7993/Denmoza_rhodacantha|title=Denmoza rhodocantha|access-date=21 October 2017}} The 30 or more ribs are high and wide, with a width of {{cvt|1|cm|in|1}} 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 {{cvt|7|cm|in}}. The tubular flowers are scarlet. The fruits are spherical and contain shiny black-brown seeds with a diameter of about {{cvt|1.3|mm|in|2}}.{{cite book | last1=Anderson | first1=Edward F. | last2=Eggli | first2=Urs | title=Das grosse Kakteen-Lexikon | date=2005 | isbn=3-8001-4573-1 | language=de | pages=177–178| publisher=Ulmer }}{{cite book | last=Backeberg | first=Curt | title=Die Cactaceae : Handbuch der Kakteenkunde. 2. Cereoideae : (Hylocereeae - Cereeae [Austrocereinae]) | date=January 1983 | isbn=3-437-30381-3 | language=de | pages=1043–1048| publisher=Fischer }}
File:Denmoza rhodacantha 2.jpg|Spines
File:Denmoza rhodacantha - University of California Botanical Garden - DSC08839.JPG| Plant grown in University of California Botanical Garden
File:Man77Denmoza rhodacantha08.jpg|Plant growing in habitat in 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 coccinea, but this has never been validly described. The species was first described as Echinocactus rhodacanthus in 1834 by Joseph zu Salm-Reifferscheidt-Dyck.{{cite book | title=Hortus dyckensis: ou catalogue des plantes cultivées dans les jardins de Dyck | publisher=Arnz | year=1834 | url=https://books.google.com/books?id=8ZsCAAAAYAAJ&pg=PA341 | language=fr | access-date=2023-08-26 | page=341}} Nathaniel Lord Britton and Joseph Nelson Rose transferred the species to their newly established genus Denmoza in 1922.{{cite book | last1=Britton | first1=Nathaniel Lord | last2=Eaton | first2=Mary E. | last3=Rose | first3=J. N. | last4=Wood | first4=Helen Adelaide | title=The Cactaceae : descriptions and illustrations of plants of the cactus family | publisher=Carnegie Institution of Washington | publication-place=Washington | year=1919 | doi=10.5962/bhl.title.46288 | page=}}
Distribution
Denmoza rhodacantha is found in northwestern and western 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|date=October 2023}}
File:Denmoza rhodacantha BlKakteen Tafel 16.jpg| Plate of Denmoza rhodocantha in Blühende Kakteen - Iconographia Cactacearum Tafel 16 (1904)
File:The Cactaceae Vol III, plate VIII filtered.jpg|Denmoza rhodocantha from The Cactaceae (1919-1923) by Britton et Rose, Vol. III. (1922)
File:× Cleistoza, Huntington.jpg|× Cleistoza, a hybrid between Cleistocactus strausii and Denmoza rhodacantha, Huntington Desert Garden
References
{{Reflist}}
External links
- {{Commons category-inline|Denmoza rhodacantha|Denmoza rhodacantha}}
- {{Wikispecies-inline|Denmoza rhodacantha|Denmoza rhodacantha}}
{{Taxonbar|from1=Q8176532|from2=Q136899|from3=Q12095268}}