# Centaurea sphaerocephala subsp. polyacantha

> subspecies of plant

**Wikidata**: [Q19608599](https://www.wikidata.org/wiki/Q19608599)  
**Source**: https://4ort.xyz/entity/centaurea-sphaerocephala-subsp-polyacantha


## References

1. Flora Europaea: Notulae Systematicae ad Floram Europaeam spectantes: No. 18
2. Global Biodiversity Information Facility
3. World Register of Marine Species
4. Tropicos
5. International Plant Names Index
6. The Plant List 1.1
7. African Plant Database
8. BDTFX v7.00
9. Plants of the World Online
10. European Nature Information System
11. World Flora Online