Taxon Report

Corethrogyne filaginifolia (H. & A.) Nutt. var. incana (Nutt.) Canby

San Diego sand aster

Print Report

Classification


Scientific Name:	Corethrogyne filaginifolia (H. & A.) Nutt. var. incana (Nutt.) Canby
Common Name:	San Diego sand aster
Family:	Asteraceae
Element Code:	PDAST2M025
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Sep	Jun-Sep
Elevation:	3-115 (10-375)
General Habitats:	Chaparral, Coastal bluff scrub, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G4T1Q
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	23
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	3
Unknown (U)	19

Location


California Endemic: False
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Del Mar (3211782), Imperial Beach (3211751), Jamul Mountains (3211668), La Jolla (3211772), National City (3211761), Point Loma (3211762), Potrero (3211655), Poway (3211781), Tecate (3211656)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	14	61 %
Development	14	60%
Road/trail construction/maint.	1	4%

Notes



Known in CA from fewer than 10 occurrences. Threatened by development and non-native plants. A synonym of Lessingia filaginifolia var. filaginifolia in The Jepson Manual; taxonomic study needed.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].