CNPS

CNPS Rare Plant Inventory



Species Details

Eriophyllum latilobum

San Mateo woolly sunflower

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Photo of Eriophyllum latilobum
Neal Kramer 		Photo of Eriophyllum latilobum
Aaron Schusteff

  Classification

Scientific Name:
Eriophyllum latilobum Rydb.
Common Name:
San Mateo woolly sunflower
Family: Asteraceae
Element Code: PDAST3N060
USDA Plants Symbol: ERLA8
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.1
Fed List: FE (1995-02-03)
State List: CE (1992-06-01)
Global Rank: G1
State Rank:
 S1
Other Status:
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2024-12-16

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Jun
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Elevation:
45 - 330 meters
150 - 1085 feet
General Habitats:
  • Cismontane woodland (often roadsides)
  • Coastal scrub
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Rediscovered in 1981 by K. Culligan and M.A. Showers. Specimens from NAP Co. need verification. References that treat this plant as a serpentine obligate are erroneous.
Threats:
Threatened by development, erosion, and road maintenance.
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 9
Total EOs % of EOs
EOs with Threat Listed: 6 75 %
THREAT LIST:
Road/trail construction/maint. 3 37%
Other 2 25%
Altered flood/tidal/hydrologic regime 2 25%
Erosion/runoff 2 25%
Mining 1 12%

  Occurrence Data from the CNDDB

Total Occurrences: 8
Element Occurrence Ranks:
A B C D X U
1 2 1 0 1 3
Occurrence Status:
Historical >20 Years 2
Recent <=20 Years 6
Presence:
Presumed Extant 7
Possibly Extirpated 1
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Mateo (SMT)
Quads: Name (Quad Code)
La Honda (3712233)*, Mindego Hill (3712232), Montara Mountain (3712254), San Mateo (3712253)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

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Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].
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