Taxon Report

Cascadia nuttallii (Small) A.M. Johnson

Nuttall's saxifrage

Print Report

Taxon Summary

Cascadia nuttallii, commonly known as Nuttall's saxifrage, is a perennial rhizomatous herb in the Saxifragaceae that is found in California and elsewhere. It occurs within North Coast coniferous forest (mesic, and rocky), growing at elevations from 40 to 75 meters. Cascadia nuttallii is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Cascadia nuttallii (Small) A.M. Johnson
Common Name:	Nuttall's saxifrage
Family:	Saxifragaceae
Element Code:	PDSAX0U160
USDA Plants Symbol:
Synonyms/Other Names:	Saxifraga nuttallii

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: May	May
Elevation:	40-75 (130-245)
General Habitats:	North Coast coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G4?
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.1 to 2B.1 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	2
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	2

Location


California Endemic: False
California Counties and Islands: Name (Code)
Del Norte (DNT)
Quads: Name (Quad Code)
Hiouchi (4112471)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	%

Notes



Known in CA from an occurrence along the Smith River.
Threats:

Taxonomy:

Selected References

Bulletin of the Torrey Botanical Club 23:368 (1896)

Cascadia nuttallii profile for potential Species of Conservation Concern evaluation (2018)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 2 November 2025].