# Euphrasia oakesii var. williamsii

> variety of plant

**Wikidata**: [Q50347534](https://www.wikidata.org/wiki/Q50347534)  
**Source**: https://4ort.xyz/entity/euphrasia-oakesii-var-williamsii


## References

1. Tropicos
2. International Plant Names Index
3. Database of Vascular Plants of Canada
4. Plants of the World Online
5. World Flora Online