Phlox diffusa

Phlox diffusa

Phlox diffusa

Taxonavigation

Taxonavigation: Ericales
Classification System: APG IV Superregnum: Eukaryota Cladus: Diaphoretickes Cladus: CAM Cladus: Archaeplastida Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Cladus: Asterids Ordo: Ericales

Familia: Polemoniaceae
Subfamilia: Polemonioideae
Tribus: Phlocideae
Genus: Phlox
Sectio: P. sect. Pulvinatae
Species: Phlox diffusa
Subspeciesː P. d. subsp. diffusa – P. d. subsp. longistylis – P. d. subsp. scleranthifolia

Name

Phlox diffusa Benth., Pl. Hartw.: 325 (1849)

Synonyms

• Homotypic
  • Phlox diffusa subsp. typica Wherry in Proc. Acad. Nat. Sci. Philadelphia 90: 139 (1938), not validly publ.
  • Phlox douglasii var. diffusa (Benth.) A.Gray in Proc. Amer. Acad. Arts 8: 254 (1870)

Distribution

Native distribution areas:
Continental: Northern America Regionalː Western USA Alberta, British Columbia Regionalː Western USA California, Oregon, Washington Regionalː Western Central USA Idaho, Montana, Nebraska, Nevada, South Dakota, Utah, Wyoming References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Primary references

• Bentham, G. 1839–1857. Plantas Hartwegianas imprimis mexicanas adjectis nonnullis Grahamianis enumerat novasque describit Georgius Bentham. 393 pp. Londini [London]. BHL Reference page.  325.

Additional references

• Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. 2021. The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8(215): 1–10. DOI: 10.1038/s41597-021-00997-6 Reference page. 
• USDA, NRCS ( 2021-continuously updated). Natural Resources Conservation Services Plant Database https://web.archive.org/web/20240926064532/https://plants.usda.gov/cgi_bin/topics.cgi?earl=checklist.html

Links

• Govaerts, R. et al. 2026. Phlox diffusa in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2026 March 16. Reference page. 
• International Plant Names Index. 2026. Phlox diffusa. Published online. Accessed: March 16 2026. Reference page.
• USDA, ARS, Germplasm Resources Information Network. Phlox diffusa in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: March 16. Reference page. 

Vernacular names

• English: Spreading phlox
• français: Phlox diffus

For more multimedia, look at Phlox diffusa on Wikimedia Commons.