Taxon Report

Erigeron sanctarum Wats.

saints' daisy

Print Report

Taxon Summary

Erigeron sanctarum, commonly known as saints' daisy, is a perennial rhizomatous herb in the Asteraceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Coastal scrub, growing at elevations from 75 to 350 meters. Erigeron sanctarum is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Erigeron sanctarum Wats.
Common Name:	saints' daisy
Family:	Asteraceae
Element Code:	PDAST3M3R0
USDA Plants Symbol:	ERSA2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: Mar-Jul	Mar-Jul
Elevation:	75-350 (245-1150)
General Habitats:	Chaparral, Cismontane woodland, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Arroyo Grande NE (3512025), Cambria (3512151), Casmalia (3412075), Lompoc (3412064), Morro Bay South (3512037), Piedras Blancas (3512163), Pismo Beach (3512026), Point Arguello (3412056), Point Sal (3412086), Port San Luis (3512027), Sacate (3412043), San Marcos Pass (3411957), San Simeon (3512162), Santa Cruz Island B (3311986), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081), Sisquoc (3412073), Surf (3412065), Tranquillon Mtn. (3412055)

Threat List Data from the CNDDB


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

Notes



Threatened by development. Known from SCZ Isl. from a single collection in 1965.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].