# Crotalus oreganus oreganus

> subspecies of Western rattlesnake

**Wikidata**: [Q43387705](https://www.wikidata.org/wiki/Q43387705)  
**Source**: https://4ort.xyz/entity/crotalus-oreganus-oreganus


## References

1. Taxonomy database of the U.S. National Center for Biotechnology Information
2. Integrated Taxonomic Information System
3. UMLS 2023
4. Open Tree of Life reference taxonomy version 3.6
5. CalPhotos