# Saintpaulia difficilis

> species of plant

**Wikidata**: [Q49421119](https://www.wikidata.org/wiki/Q49421119)  
**Source**: https://4ort.xyz/entity/saintpaulia-difficilis


## References

1. Studies in the Gesneriaceae of the Old World XV. The genus Saintpaulia
2. Taxonomy database of the U.S. National Center for Biotechnology Information
3. Integrated Taxonomic Information System
4. Global Biodiversity Information Facility
5. Tropicos
6. International Plant Names Index
7. African Plant Database
8. UMLS 2023
9. Plants of the World Online
10. World Flora Online
11. Open Tree of Life reference taxonomy version 3.6
12. Plant Finder