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Thelocactus macdowelii

Thelocactus macdowelii, Photo: Michael Lahanas

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Thelocactus
Species: Thelocactus macdowellii
Name

Thelocactus macdowellii (Rebut ex Quehl) W.T.Marshall, 1947
Note

The epithet of the species honors the Mexican gardener and plant collector José Alberto McDowell.
Synonyms

Echinocactus macdowellii Orcutt
Echinocactus macdowellii Rebut ex Quehl
Echinomastus macdowellii (Orcutt) Britton & Rose
Neolloydia macdowellii (Rebut ex Quehl) H.E.Moore
Neolloydia mcdowellii (Rebut ex Quehl) H.E.Moore
Thelocactus conothelos var. macdowellii (W.T.Marshall) Glass & R.B.Foster

Distribution
Native distribution areas:

Continental: Northern America
Regional: Mexico
Mexico Northeast

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Marshall, W.T. (1947) Cactus and Succulent Journal of Great Britain 9: 28

Additional references

Villaseñor, J.L. 2016. Checklist of the native vascular plants of Mexico. Revista Mexicana de Biodiversidad 87: 559–902. DOI: 10.1016/j.rmb.2016.06.017 Online PDF Reference page.
Hernández, H.M. & Gómez-Hinostrosa, C. (2015). Mapping the cacti of Mexico part II. Mammillaria Succulent Plant Research 9: 1-189.
Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 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 Open access Reference page.

Links

Korotkova, N. et al. 2021. Thelocactus macdowellii in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published on the internet. Accessed: 2021 Nov 26. Reference page.
Govaerts, R. et al. 2021. Thelocactus macdowellii in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2021 Mar 28. Reference page.
International Plant Names Index. 2021. Thelocactus macdowellii. Published online. Accessed: Mar 28 2021.
Tropicos.org 2021. Thelocactus macdowellii. Missouri Botanical Garden. Published on the internet. Accessed: 2021 Mar 28.
Hassler, M. 2021. Thelocactus macdowellii. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2021 Mar 28. Reference page.

Thelocactus macdowellii, called the Chihuahuan snowball, is a species of cactus native to northeastern Mexico.[1][2] It has gained the Royal Horticultural Society's Award of Garden Merit.[3]
References

"Thelocactus macdowellii (Rebut ex Quehl) W.T.Marshall". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 24 March 2021.
"Thelocactus macdowellii Chihuahuan Snowball". Gardens Navigator. Denver Botanic Gardens. Retrieved 24 March 2021.
"Thelocactus macdowellii". The Royal Horticultural Society. Retrieved 24 March 2021.

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