# Euphorbia rigida

> species of plant

**Wikidata**: [Q4117008](https://www.wikidata.org/wiki/Q4117008)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Euphorbia_rigida)  
**Source**: https://4ort.xyz/entity/euphorbia-rigida


## References

1. A worldwide molecular phylogeny and classification of the leafy spurges, Euphorbia subgenus Esula (Euphorbiaceae)
2. Freebase Data Dumps. 2013
3. Taxonomy database of the U.S. National Center for Biotechnology Information
4. Integrated Taxonomic Information System
5. Encyclopedia of Life
6. Global Biodiversity Information Facility
7. Tropicos
8. International Plant Names Index
9. The Plant List 1.1
10. GRIN Taxonomy for Plants
11. United States Department of Agriculture Plants Database
12. African Plant Database
13. UMLS 2023
14. TAXREF v9.0
15. TAXREF v10.0
16. TAXREF v11.0
17. TAXREF v12.0
18. TAXREF v13.0
19. TAXREF v14.0
20. TAXREF v15.0
21. TAXREF v16.0
22. World Checklist of Selected Plant Families
23. Plants of the World Online
24. European Nature Information System
25. World Flora Online
26. Royal Horticultural Society Plant Database
27. Open Tree of Life reference taxonomy version 3.2
28. North Carolina Extension Gardener Plant Toolbox
29. FloraVeg.EU
30. SERNEC
31. CalPhotos
32. Flora Croatica Database
33. EASIN Catalogue of Alien Species