# Pediocactus simpsonii var. knowltonii
**Wikidata**: [Q94384402](https://www.wikidata.org/wiki/Q94384402)  
**Source**: https://4ort.xyz/entity/pediocactus-simpsonii-var-knowltonii


## 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