Biology:Soehrensia
Soehrensia is a formerly accepted genus of cacti native to South America. It is now included within Echinopsis. Its former species are native to northern Argentina, Bolivia, northern Chile, Paraguay and Peru, and have been introduced elsewhere, including Mexico, southern Africa and Spain.
Taxonomy
The genus was established by Curt Backeberg in 1938.[1] The genus name Soehrensia is in honour of Johannes Soehrens (died 1934), who was a Dutch botanist and Professor and Director of the Botanical Garden in Santiago de Chile. He was an authority on cacti.[2]
Studies in the 1970s and 1980s resulted in several formerly separate genera being absorbed into Echinopsis, including Soehrensia.[3] In the 2016 edition of the CITES Cactaceae Checklist, it was restored as an independent genus,[4] the position of the World Flora Online as of November 2025[update].[5] A major 2025 classification of the family Cactaceae returned Soehrensia to a synonym of Echinopsis,[6] the position accepted by Plants of the World Online as of November 2025[update].[7]
Species
Species previously placed in the genus Soehrensia that Plants of the World Online places in Echinopsis include:[8]
| Flower | Plant | Scientific Name | Distribution |
|---|---|---|---|
| 120px | Soehrensia angelesiae (R.Kiesling) Schlumpb. → Echinopsis angelesiae |
Argentina (Salta) | |
| Soehrensia arboricola (Kimnach) Schlumpb. → Echinopsis arboricola |
Argentina (Salta), Bolivia | ||
| 120px | 120px | Soehrensia bruchii (Britton & Rose) Backeb. → Echinopsis bruchii |
Argentina (Tucumán) |
| 120px | 120px | Soehrensia camarguensis (Cárdenas) Schlumpb. → Echinopsis camarguensis |
Bolivia |
| 120px | 120px | Soehrensia candicans (Gillies ex Salm-Dyck) Schlumpb. → Echinopsis candicans |
Argentina |
| 120px | Soehrensia caulescens (F.Ritter) Schlumpb. → Echinopsis caulescens |
Bolivia | |
| 120px | 120px | Soehrensia formosa (Pfeiff.) Backeb. → Echinopsis formosa |
Argentina, Bolivia, Chile |
| 120px | 120px | Soehrensia grandiflora (Britton & Rose) Schlumpb. → Echinopsis crassicaulis |
Argentina |
| 120px | Soehrensia hahniana (Backeb.) Schlumpb. → Echinopsis hahniana |
Paraguay (Rio Apa) | |
| 120px | 120px | Soehrensia huascha (F.A.C.Weber) Schlumpb. → Echinopsis huascha |
Argentina |
| Soehrensia quadratiumbonata (F.Ritter) Schlumpb. → Echinopsis quadratiumbonata |
Bolivia. | ||
| Soehrensia sandiensis (Hoxey) Schlumpb. → Echinopsis sandiensis |
Peru | ||
| 120px | 120px | Soehrensia schickendantzii (F.A.C.Weber) Schlumpb. → Echinopsis schickendantzii |
Argentina. |
| Soehrensia serpentina (M.Lowry & M.Mend.) Schlumpb. → Echinopsis serpentina |
Bolivia, Peru | ||
| Soehrensia shaferi (Britton & Rose) Schlumpb. → Echinopsis friedrichii |
Argentina | ||
| 120px | 120px | Soehrensia smrziana (Backeb.) Backeb. → Echinopsis smrziana |
Argentina |
| 120px | 120px | Soehrensia spachiana (Lem.) Schlumpb. → Echinopsis spachiana |
Argentina, Bolivia |
| 120px | 120px | Soehrensia strigosa (Salm-Dyck) Schlumpb. → Echinopsis strigosa |
Argentina |
| 120px | Soehrensia tarijensis (Vaupel) Schlumpb. → Echinopsis tarijensis |
Bolivia, Argentina (Jujuy) | |
| 120px | 120px | Soehrensia thelegona (F.A.C.Weber) Schlumpb. → Echinopsis thelegona |
Argentina |
| 120px | Soehrensia thelegonoides (Speg.) Schlumpb. → Echinopsis thelegonoides |
Argentina (Jujuy) | |
| 120px | Soehrensia vasquezii (Rausch) Schlumpb. → Echinopsis vasquezii |
Bolivia | |
| Soehrensia volliana (Backeb.) Schlumpb. → Echinopsis volliana |
Bolivia | ||
| Soehrensia walteri (R.Kiesling) Schlumpb. → Echinopsis walteri |
Argentina (Salta) |
A hybrid originally named Trichocereus × mendocinus in 2000 was placed in Soehrensia as Soehrensia × mendocina in 2021. As of February 2026[update], Plants of the World Online regarded this as "unplaced".[9] It is considered to be a hybrid between Soehrensia candicans (=Echinopsis candicans) and S. strigosa (=E. strigosa).[10]
References
- ↑ "Soehrensia Backeb..". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. https://www.ipni.org/n/295134-2.
- ↑ Burkhardt, Lotte (January 2022) (in de). Eine Enzyklopädie zu eponymischen Pflanzennamen. Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. https://www.bgbm.org/sites/default/files/Burkhardt_2022_Eine_Enzyklop%C3%A4die_zu_eponymischen_Pflanzennamen.pdf. Retrieved November 1, 2022.
- ↑ Friedrich, H.; Glaetzle, W. (1 December 1983). "Seed-morphology as an aid to classifying the genus Echinopsis Zucc.". Bradleya 1 (1): 91–104. doi:10.25223/brad.n1.1983.a9. Bibcode: 1983Bradl...1...91F.
- ↑ Hunt, D. (2016). CITES Cactaceae Checklist (3rd ed.). Royal Botanic Gardens, Kew. ISBN 978-0-9933113-2-1. https://www.kew.org/sites/default/files/2019-02/CITES%20Cactaceae%20Checklist%20Third%20Edition.pdf. Retrieved 2025-11-20.
- ↑ "Soehrensia Backeb.". http://worldfloraonline.org/taxon/wfo-4000035663.
- ↑ de Vos, Jurriaan M.; Eggli, Urs; Nyffeler, Reto; Larridon, Isabel; McGinnie, Catherine; Epitawalage, Niroshini; Maurin, Olivier; Forest, Félix et al. (2025). "Phylogenomics and classification of Cactaceae based on hundreds of nuclear genes". Plant Systematics and Evolution 311 (5). doi:10.1007/s00606-025-01948-z. PMID 40809096. Bibcode: 2025PSyEv.311...28D.
- ↑ "Soehrensia Backeb. | Plants of the World Online | Kew Science". https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:295134-2.
- ↑ "Search for 'Soehrensia'". Royal Botanic Gardens, Kew. https://powo.science.kew.org/results?q=Soehrensia.
- ↑ "Soehrensia × mendocina (Méndez) Schlumpb.." (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/77222633-1.
- ↑ Korotkova, Nadja; Aquino, David; Arias, Salvador; Eggli, Urs; Franck, Alan; Gómez-Hinostrosa, Carlos; Guerrero, Pablo C.; Hernández, Héctor M. et al. (2021). "Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family". Willdenowia 51 (2): 251–270. doi:10.3372/wi.51.51208. Bibcode: 2021Willd..5151208K. p. 265
Bibliography
- Edward F. Anderson, The Cactus Family (Timber Press, 2001) ISBN 0-88192-498-9, pp. 255–286
External links
Data related to Soehrensia at Wikispecies
Wikidata ☰ Q21447523 entry
 |  |
