# Sempervivum calcareum

> species of plant

**Wikidata**: [Q606821](https://www.wikidata.org/wiki/Q606821)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sempervivum_calcareum)  
**Source**: https://4ort.xyz/entity/sempervivum-calcareum


## References

1. Illustrated Handbook of Succulent Plants
2. Taxonomy database of the U.S. National Center for Biotechnology Information
3. Encyclopedia of Life
4. Global Biodiversity Information Facility
5. Tropicos
6. International Plant Names Index
7. The Plant List 1.1
8. GRIN Taxonomy for Plants
9. A dataset on catalogue of alien plants in China
10. UMLS 2023
11. BDTFX v7.00
12. TAXREF v9.0
13. TAXREF v10.0
14. TAXREF v11.0
15. TAXREF v12.0
16. TAXREF v13.0
17. TAXREF v14.0
18. TAXREF v15.0
19. TAXREF v16.0
20. Plants of the World Online
21. European Nature Information System
22. World Flora Online
23. Royal Horticultural Society Plant Database
24. Open Tree of Life reference taxonomy version 3.2
25. FloraVeg.EU
26. CalPhotos