# Carduus nigrescens subsp. aemilii
**Wikidata**: [Q89096019](https://www.wikidata.org/wiki/Q89096019)  
**Source**: https://4ort.xyz/entity/carduus-nigrescens-subsp-aemilii


## References

1. Global Biodiversity Information Facility
2. World Register of Marine Species
3. International Plant Names Index
4. BDTFX v7.00
5. Plants of the World Online
6. World Flora Online