# Gymnocalycium glaucum subsp. ferrarii
**Wikidata**: [Q93158546](https://www.wikidata.org/wiki/Q93158546)  
**Source**: https://4ort.xyz/entity/gymnocalycium-glaucum-subsp-ferrarii


## 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