# Opuntia helleri

> species of plant

**Wikidata**: [Q148613](https://www.wikidata.org/wiki/Q148613)  
**Source**: https://4ort.xyz/entity/opuntia-helleri


## References

1. Das große Kakteen-Lexikon
2. Freebase Data Dumps. 2013
3. Taxonomy database of the U.S. National Center for Biotechnology Information
4. Integrated Taxonomic Information System
5. Encyclopedia of Life
6. Global Biodiversity Information Facility
7. Tropicos
8. International Plant Names Index
9. The Plant List 1.1
10. ARKive
11. UMLS 2023
12. Plants of the World Online
13. World Flora Online
14. Open Tree of Life reference taxonomy version 3.2
15. CalPhotos