# Mammillaria tetrancistra

> species of plant

**Wikidata**: [Q202574](https://www.wikidata.org/wiki/Q202574)  
**Source**: https://4ort.xyz/entity/mammillaria-tetrancistra


## References

1. The IUCN Red List of Threatened Species 2022.2
2. Das große Kakteen-Lexikon
3. The New Cactus Lexicon
4. IUCN Red List
5. Freebase Data Dumps. 2013
6. Taxonomy database of the U.S. National Center for Biotechnology Information
7. Integrated Taxonomic Information System
8. Encyclopedia of Life
9. Global Biodiversity Information Facility
10. Tropicos
11. International Plant Names Index
12. The Plant List 1.1
13. Flora of North America
14. United States Department of Agriculture Plants Database
15. Species+
16. UMLS 2023
17. Plants of the World Online
18. Interim Register of Marine and Nonmarine Genera
19. World Flora Online
20. Native Plants Database
21. Open Tree of Life reference taxonomy version 3.2
22. SERNEC
23. CalPhotos