# Thelypodium howellii subsp. howellii

> subspecies of plant

**Wikidata**: [Q24688469](https://www.wikidata.org/wiki/Q24688469)  
**Source**: https://4ort.xyz/entity/thelypodium-howellii-subsp-howellii


## References

1. Integrated Taxonomic Information System
2. Global Biodiversity Information Facility
3. Tropicos
4. GRIN Taxonomy for Plants
5. Flora of North America
6. United States Department of Agriculture Plants Database
7. Rare Plant Fact Sheets
8. Plants of the World Online
9. World Flora Online
10. Native Plants Database
11. Washington Flora Checklist
12. Online Field Guide to the Rare Plants of Washington
13. CalPhotos