Taxon Report

Eriodictyon sessilifolium Greene

sessile-leaved yerba santa

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Taxon Summary

Eriodictyon sessilifolium, commonly known as sessile-leaved yerba santa, is a perennial shrub in the Namaceae that is found in California and elsewhere. It occurs within Coastal scrub, growing at elevations from 170 to 170 meters. Eriodictyon sessilifolium is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.


  Classification

Scientific Name:
Eriodictyon sessilifolium Greene
Common Name:
sessile-leaved yerba santa
Family: Namaceae
Element Code: PDHYD040A0
USDA Plants Symbol:
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank: 2B.1
Global Rank: G4
State Rank:
S1
State List: None
Fed List: None
Other Status: SB_CalBG/RSABG
CRPR Changes:
  • added to 2B.1 on 2017-01-18

Occurrence Data from the CNDDB

Total Occurrences: 1
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 0
   Poor (D) 1
   None (X) 0
   Unknown (U) 0
California Endemic:  False
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Poway (3211781)

Threat List Data from the CNDDB

Threat List Total: 1
EOs with Threat Listed: Total EOs % of EOs
1 100 %
Road/trail construction/maint. 1 100%

Notes

Discovered in California by J. Holland in 2015. Differentiated from other Eriodictyon spp. in having capitate trichomes on its leaves, stems, and peduncles. See Bulletin of the California Academy of Sciences 1(4):201-202 (1885) for original description, and American Journal of Botany 75(4):579-588 (1988) for taxonomic treatment.
Threats:
Taxonomy:

Selected References

CRPR List Addition on 2017-01-18
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 February 2025].