# Ferocactus cylindraceus subsp. tortulispinus

> subspecies of plant

**Wikidata**: [Q10860271](https://www.wikidata.org/wiki/Q10860271)  
**Source**: https://4ort.xyz/entity/ferocactus-cylindraceus-subsp-tortulispinus


## References

1. The New Cactus Lexicon
2. Integrated Taxonomic Information System
3. Global Biodiversity Information Facility
4. Tropicos
5. International Plant Names Index
6. The Plant List 1.1
7. GRIN Taxonomy for Plants
8. Plants of the World Online
9. World Flora Online
10. CalPhotos