Scientific taxonomy article
Accepted name and source opinion
Kew POWO accepts Aztekium valdezii with the author citation Velazco, M.A.Alvarado & S.Arias; its native range is Mexico: central Nuevo León in desert or dry-shrubland context.1 IPNI remains separate evidence for nomenclatural publication and type details.2 POWO and IPNI retain the accepted identity under 77131602-1 in the 2013 Xerophilia special issue; legacy source 77202359-1 is rejected. The correct LSID and legacy wrong source remain explicit. The difference stays source-attributed in metadata; neither a wrong legacy LSID nor an invented reconciliation is generated.
Placement and production lineage
In the Kew backbone, Aztekium is an accepted genus of Cactaceae with three currently accepted species.3 The production taxonomy lineage for this record is species → Aztekium → Cactaceae. This batch does not create Cacteae, Cactoideae, Caryophyllales or any other ancestor node; it uses only the existing species node and direct genus relationship.
A very small body, fine rib arrangement, transverse rib markings and central areoles are evaluated together for identification. Identification cannot be reduced to flower colour, one product photograph or body proportions altered by cultivation. Ribs and their shape, epidermis, areoles, spines, flowers, fruits, root structure and reliable provenance should be evaluated together. Grafting, low light and heavy feeding do not automatically change the scientific name.
Synonymy and canonical boundary
Kew lists 0 synonyms; there is no source-backed synonym row for this species. Homotypic names share a nomenclatural type, while heterotypic names can be based on different historical types. Synonyms support search and literature retrieval but do not create separately accepted species routes.
Treatment under A. ritteri in an alternative opinion is not a synonym row in the canonical Kew backbone. A commercial clone, collection label, spelling variant or alternative taxonomic opinion does not create a synonym row unless the maintained backbone accepts that name as a synonym.
Range and conservation
Its narrow rocky range in central Nuevo León can justify withholding precise locality data for conservation reasons. POWO records the native range as Mexico: central Nuevo León.1 This does not describe nursery production, and commercial availability is not evidence that wild populations are secure.
The sourced conservation target is NE; the former live value was NE.1 No species-level official IUCN assessment was identified, so NE is retained without inference. This is only a botanical conservation field, not product eligibility, legal trade permission or inventory policy.
Editorial ownership boundary
The source defines only the target taxonomy node and linked botanical editorial fields. Product copy, price, stock, SKU, images, variants, categories, common names, slugs and the product-to-botanical link remain protected. Placeholder botanical media is not replaced in this batch.
Current toxicity, difficulty and light enums are not reclassified as new scientific claims; their exact production-snapshot values are carried forward. The accepted species epithet may be populated, while empty subfamily and tribe fields are not guessed.
References
- Plants of the World Online. “Aztekium valdezii Velazco, M.A.Alvarado & S.Arias.” Royal Botanic Gardens, Kew. Accessed: 2026-08-05. https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A77131602-1 ↩
- International Plant Names Index. “Aztekium valdezii Velazco, M.A.Alvarado & S.Arias.” Accessed: 2026-08-05. https://www.ipni.org/n/urn%3Alsid%3Aipni.org%3Anames%3A77131602-1 ↩
- Plants of the World Online. “Aztekium Boed.” Royal Botanic Gardens, Kew. Accessed: 2026-08-05. https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A295156-2 ↩
