# Centaurea nigra subsp. nigra

> subspecies of plant

**Wikidata**: [Q52984933](https://www.wikidata.org/wiki/Q52984933)  
**Source**: https://4ort.xyz/entity/centaurea-nigra-subsp-nigra


## References

1. Taxonomy database of the U.S. National Center for Biotechnology Information
2. Global Biodiversity Information Facility
3. Tropicos
4. African Plant Database
5. UMLS 2023
6. BDTFX v7.00
7. National Biodiversity Network
8. Plants of the World Online
9. FloraWeb
10. European Nature Information System
11. World Flora Online
12. Open Tree of Life reference taxonomy version 3.2
13. Flora Croatica Database