Strombocactus disciformis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Cactaceae

Scientific Name: Strombocactus disciformis (DC.) Britton & Rose
Mammillaria disciformis DC.
Taxonomic Source(s): Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.
Taxonomic Notes: Two subspecies are recognized, the nominate form and subsp. esperanzae Glass & S. Arias.

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(v) ver 3.1
Year Published: 2017
Date Assessed: 2009-11-17
Assessor(s): Gómez-Hinostrosa, C., Sánchez , E., Guadalupe Martínez, J. & Bárcenas Luna, R.
Reviewer(s): Superina, M., Goettsch, B.K. & Chanson, J.S.
Facilitator/Compiler(s): Schipper, J.
Strombocactus disciformis is considered to be Vulnerable because of its limited range (extent of occurrence approximately 4,500 km2), it occurs in less than 10 locations, and is experiencing a decline in mature individuals due to illegal overcollection.
Previously published Red List assessments:

Geographic Range [top]

Range Description:The species occurs in Mexico in the states of Guanajuato, Hidalgo and Querétaro (Hernández et al. 2004).
Countries occurrence:
Mexico (Guanajuato, Hidalgo, Querétaro)
Additional data:
Number of Locations:9
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is relatively abundant in canyon habitats. There are 19 known localities.
Current Population Trend:Decreasing
Additional data:
Continuing decline of mature individuals:Yes
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The species is reported in matorral on steep, calcareous, mudrock (lutita) alluvial cliffs along stream beds or canyon walls (Lüthy 2001).

Use and Trade [top]

Use and Trade: This cactus is found in the Mexican trade of ornamental plants (Bárcenas 2003).

Threats [top]

Major Threat(s): Illegal collection for the ornamental plant trade is an increasing threat.

Conservation Actions [top]

Conservation Actions:

The species 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). It occurs in a protected area.

An important step for the conservation of the species is commercial propagation to reduce the collection from wild populations. A micropropagation technique has been established at the Cadereyta Regional Botanic Gardens with a rate of 10x/4 weeks, with 85% soil adaptation success (E. Sánchez pers. comm. 2011).

The species is included in CITES Appendix I.

Amended [top]

Amended reason: The species distribution map has been included.

Citation: Gómez-Hinostrosa, C., Sánchez , E., Guadalupe Martínez, J. & Bárcenas Luna, R. 2017. Strombocactus disciformis (amended version of 2013 assessment). The IUCN Red List of Threatened Species 2017: e.T152318A121587897. . Downloaded on 26 September 2018.
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