# Polycarpon tetraphyllum subsp. tetraphyllum

> subspecies of plant

**Wikidata**: [Q24688496](https://www.wikidata.org/wiki/Q24688496)  
**Source**: https://4ort.xyz/entity/polycarpon-tetraphyllum-subsp-tetraphyllum


## References

1. Taxonomy database of the U.S. National Center for Biotechnology Information
2. Integrated Taxonomic Information System
3. Global Biodiversity Information Facility
4. Tropicos
5. Flora of North America
6. Database of Vascular Plants of Canada
7. United States Department of Agriculture Plants Database
8. African Plant Database
9. UMLS 2023
10. BDTFX v7.00
11. TAXREF v9.0
12. TAXREF v10.0
13. TAXREF v11.0
14. TAXREF v12.0
15. TAXREF v13.0
16. TAXREF v14.0
17. TAXREF v15.0
18. TAXREF v16.0
19. Plants of the World Online
20. FloraWeb
21. European Nature Information System
22. World Flora Online
23. Open Tree of Life reference taxonomy version 3.2
24. Washington Flora Checklist
25. E-Flora BC
26. Flora of the Southeastern United States
27. Flora Croatica Database