Taxon Details

Corethrogyne filaginifolia var. linifolia

Del Mar Mesa sand aster

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Taxon Summary:

Corethrogyne filaginifolia var. linifolia, commonly known as Del Mar Mesa sand aster, is a perennial herb in the Asteraceae that is found only in California. It occurs within Chaparral (maritime, openings), Coastal bluff scrub, and Coastal scrub, growing at elevations from 5 to 150 meters. Corethrogyne filaginifolia var. linifolia is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

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:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos
Lifeform: perennial herb
Blooming Period: May-Sep
JFMAMJJASOND
Elevation:
5 - 150 meters
15 - 490 feet
General Habitats:
  • Coastal bluff scrub
  • Chaparral (maritime, openings)
  • Coastal scrub
Microhabitat Details:
Microhabitat:
  • Sandy
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 Total: 6
Total EOs % of EOs
EOs with Threat Listed: 28 62 %
THREAT LIST:
Development 21 46%
Road/trail construction/maint. 10 22%
Non-native plant impacts 4 8%
Foot traffic/trampling 3 6%
Other 1 2%
Total Occurrences: 45
Element Occurrence Ranks:
A B C D X U
2 6 3 4 3 27
Occurrence Status:
Historical >20 Years 30
Recent <=20 Years 15
Presence:
Presumed Extant 42
Possibly Extirpated 2
Presumed Extirpated 1
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.
Presumed Extant
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