# Polystichum aculeatum

> species of evergreen fern

**Wikidata**: [Q28957](https://www.wikidata.org/wiki/Q28957)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Polystichum_aculeatum)  
**Source**: https://4ort.xyz/entity/polystichum-aculeatum


## References

1. Australian Plant Name Index
2. Freebase Data Dumps. 2013
3. Taxonomy database of the U.S. National Center for Biotechnology Information
4. [BioLib](https://www.biolib.cz/cz/taxon/id3155/)
5. Global Biodiversity Information Facility
6. Tropicos
7. International Plant Names Index
8. The Plant List 1.1
9. Flora of China
10. Gwefan Llên Natur
11. [Portál informačního systému ochrany přírody](https://portal.nature.cz/publik_syst/nd_nalez-public.php?idTaxon=38820)
12. [Belgian Species List](http://species.be/en/3423)
13. Nederlands Soortenregister
14. [Finnish Biodiversity Information Facility](https://laji.fi/taxon/MX.37759)
15. List of plant species in China (2022 Edition)
16. Flora Reipublicae Popularis Sinicae, volume 5(2)
17. [Source](http://www.sabencia.net/nomenclator.php)
18. The Little Flora of Slovenia (3rd ed.)
19. Dyntaxa
20. African Plant Database
21. New Zealand Organisms Register
22. UMLS 2023
23. TAXREF v9.0
24. TAXREF v10.0
25. TAXREF v11.0
26. TAXREF v12.0
27. TAXREF v13.0
28. TAXREF v14.0
29. TAXREF v15.0
30. TAXREF v16.0
31. National Biodiversity Network
32. Plants of the World Online
33. [Portál informačního systému ochrany přírody](https://portal.nature.cz/redlist/v_nd_taxon_category.php)
34. FloraWeb
35. Info Flora
36. eBiodiversity
37. Belgian Species List
38. India Biodiversity Portal
39. Indian Medicinal Plants Database
40. Finnish Biodiversity Information Facility
41. World Flora Online
42. Royal Horticultural Society Plant Database
43. Open Tree of Life reference taxonomy version 3.2
44. Naturbasen
45. Plant Finder
46. FloraVeg.EU
47. Biota of New Zealand
48. SERNEC
49. CalPhotos
50. Flora Croatica Database