# Mammillaria formosa subsp. pseudocrucigera
**Wikidata**: [Q94434452](https://www.wikidata.org/wiki/Q94434452)  
**Source**: https://4ort.xyz/entity/mammillaria-formosa-subsp-pseudocrucigera


## References

1. Integrated Taxonomic Information System
2. Global Biodiversity Information Facility
3. International Plant Names Index
4. Plants of the World Online
5. World Flora Online