Aztekium hintonii 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Cactaceae

Scientific Name: Aztekium hintonii
Species Authority: Glass & W.A.Fitz Maur.
Taxonomic Source(s): Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2015
Date Assessed: 2009-11-19
Assessor(s): Fitz Maurice, B, Fitz Maurice, W.A., Hernández, H.M., Sotomayor, M. & Smith, M.
Reviewer(s): Superina, M., Goettsch, B. & Schipper, J.
Facilitator/Compiler(s): Goettsch, B.
Aztekium hintonii has an extremely small range, both the extent of occurrence and area of occupancy are about 50 km². The area is essentially a single location, and there is ongoing illegal collection of the species. However, the population is extremely large and the collecting does not seem to be causing any declines. Hence, the species is listed as Near Threatened because it almost qualifies for a Critically Endangered listing under criterion B1ab(v).
Previously published Red List assessments:
2013 Near Threatened (NT)
2009 Least Concern (LC)

Geographic Range [top]

Range Description: This species is endemic to the Mexican state of Nuevo León. It has a very limited range, with the extent of occurrence and area of occupancy being about the same - 50 km². It occurs at an elevation of around 1,200 m asl (Hernández and Gómez-Hinostrosa 2011).
Countries occurrence:
Mexico (Nuevo León)
Estimated area of occupancy (AOO) - km2: 50
Continuing decline in area of occupancy (AOO): No
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2: 50
Continuing decline in extent of occurrence (EOO): No
Extreme fluctuations in extent of occurrence (EOO): No
Number of Locations: 1
Continuing decline in number of locations: No
Extreme fluctuations in the number of locations: No
Lower elevation limit (metres): 1200
Upper elevation limit (metres): 1200
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The estimates in population size vary considerably, with 100,000 being an agreed lower limit and well over one million the upper limit (some people have estimated over 42 million individuals). Despite illegal collection, the population is stable and not decreasing.
Current Population Trend: Stable
Additional data:
Number of mature individuals: 100000 Continuing decline of mature individuals: No
Extreme fluctuations: No Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology:

This cactus grows in semi-desert shrubland. It is a soil specialist growing only on gypsum cliffs, i.e., it is a gypsophile (Anderson 2001).

Systems: Terrestrial

Use and Trade [top]

Use and Trade: There is illegal trade and the species has been found in seizures (Bárcenas 2003).

Threats [top]

Major Threat(s): Illegal collection is the main threat. However, now it is protected by local people (Pilbeam and Weightman 2006) who safeguard it in order to sell it themselves.

Conservation Actions [top]

Conservation Actions:

This cactus is legally protected in Mexico by the national list of species at risk of extinction, NOM-059-SEMARNAT-2010, where it is listed under the category “threatened” (A; SEMARNAT 2010). Local people guard the plants and prevent illegal collection (Pilbeam and Weightman 2006), but the area has no protected area status.

Citation: Fitz Maurice, B, Fitz Maurice, W.A., Hernández, H.M., Sotomayor, M. & Smith, M. 2015. Aztekium hintonii. The IUCN Red List of Threatened Species 2015: e.T152003A77321944. . Downloaded on 28 November 2015.
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