Echinopsis quadratiumbonata
| Echinopsis quadratiumbonata | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Echinopsis |
| Species: | E. quadratiumbonata
|
| Binomial name | |
| Echinopsis quadratiumbonata (F.Ritter) D.R.Hunt[2]
| |
| Synonyms[2] | |
| |
Echinopsis quadratiumbonata, synonym Soehrensia quadratiumbonata, is a species of Echinopsis found in Bolivia.[2]
Description
Echinopsis quadratiumbonata grows as a shrub with several upright branches emerging from the base, reaching heights of up to 1 m (3 ft). The cylindrical green stems are 4 to 5 cm (1.6 to 2.0 in) in diameter. There are nine to twelve ribs with cross-grooves. The round, brown areoles on the ribs are about 1 cm (0.39 in) apart, from which white, needle-like spines with brown tips emerge. Typically, there is a single robust central spine, 1 to 4 cm (0.39 to 1.57 in) long, and seven to ten radial spines measuring 0.4 to 1 cm (0.16 to 0.39 in) in length.
The long, funnel-shaped white flowers open at night, but not fully. The dark green fruits are up to 3.5 cm (1.4 in) long and wide.[3]
Taxonomy
First described as Trichocereus quadratiumbonatus by Friedrich Ritter in 1980, the species epithet derives from the Latin words quadratus (four-sided) and umbonatus (navel-like), referring to the almost rectangular ribs of the plant.[4] Boris O. Schlumpberger reclassified the species into the genus Soehrensia in 2012.[5] As of February 2026, Plants of the World Online placed it in the genus Echinopsis.[2]
Distribution
Echinopsis quadratiumbonata is native to Bolivia.[2] It is found in the departments of Chuquisaca and Santa Cruz at elevations of 1,000 to 1,900 m (3,300 to 6,200 ft).
References
- ^ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-22. Retrieved 2024-07-10.
- ^ a b c d e "Echinopsis quadratiumbonata (F.Ritter) D.R.Hunt". Plants of the World Online. Retrieved 2026-02-24.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 241. ISBN 3-8001-4573-1.
- ^ "Au Cactus Francophone :". Au Cactus Francophone (in French). Retrieved 2024-07-10.
- ^ Korotkova, Nadja; Aquino, David; Arias, Salvador; Eggli, Urs; Franck, Alan; Gómez-Hinostrosa, Carlos; Guerrero, Pablo C.; Hernández, Héctor M.; Kohlbecker, Andreas; Köhler, Matias; Luther, Katja; Majure, Lucas C.; Müller, Andreas; Metzing, Detlev; Nyffeler, Reto; Sánchez, Daniel; Schlumpberger, Boris; Berendsohn, Walter G. (2021-08-31). "Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family". Willdenowia. 51 (2). Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin. doi:10.3372/wi.51.51208. ISSN 0511-9618.