Species Details

Corethrogyne filaginifolia var. linifolia

Del Mar Mesa sand aster

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Classification

Scientific Name: Corethrogyne filaginifolia (H. & A.) Nutt. var. linifolia Hall
Common Name: Del Mar Mesa sand aster
Family:	Asteraceae
Element Code:	PDAST2M027
USDA Plants Symbol:
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G4T1Q
State Rank:	S1
Other Status:	SB_CRES
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2021-11-05

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Sep

Elevation:
5 - 150 meters
15 - 490 feet

General Habitats:

Coastal bluff scrub
Chaparral (maritime, openings)
Coastal scrub

Microhabitat Details:

Microhabitat:

Sandy

Notes

Notes: Threatened by development, trampling, non-native plants, and road maintenance. A synonym of Lessingia filaginifolia var. filaginifolia in The Jepson Manual; additional taxonomic work ongoing as of 1999.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	28	62 %
Development	21	46%
Road/trail construction/maint.	10	22%
Non-native plant impacts	4	8%
Foot traffic/trampling	3	6%
Other	1	2%
Recreational use (non-ORV)	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					45
A	B	C	D	X	U
2	6	3	4	3	27

Occurrence Status:
Historical >20 Years	27
Recent <=20 Years	18

Presence:
Presumed Extant	42
Possibly Extirpated	2
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Diego (SDG)

Quads: Name (Quad Code)
Del Mar (3211782), Encinitas (3311713), Rancho Santa Fe (3311712), San Luis Rey (3311723)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory