''Setiechinopsis'' is a

monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

cacti A cactus (: cacti, cactuses, or less commonly, cactus) is a member of the plant family Cactaceae (), a family of the order Caryophyllales comprising about 127 genera with some 1,750 known species. The word ''cactus'' derives, through Latin, ...

. Its only species, ''Setiechinopsis mirabilis'', is native to Argentina.

Description

''Setiechinopsis mirabilis'' grows solitary. The cylindrical, dull yellowish-green to brown-green shoots reach heights of with a diameter of up to . There are eleven ribs that are slightly wavy. The single, protruding and straight central spine is 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 long. Their bracts are spread out. The fruits reach a diameter of and are long.

Taxonomy

The first description of the species as ''Echinopsis mirabilis'' by Carlos Luis Spegazzini was published in 1905. 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.

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

External links

* * {{Taxonbar, from1=Q21447433, from2=Q109341548, from3=Q1280598 Cereeae Monotypic Cactaceae genera Cereeae genera