CNPS

CNPS Rare Plant Inventory

Species Details

Limnanthes douglasii ssp. sulphurea

Point Reyes meadowfoam

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Photo of Limnanthes douglasii ssp. sulphurea
© 2016 Aaron Arthur 		Photo of Limnanthes douglasii ssp. sulphurea
© 2019 Scott Yarger

  Classification

Scientific Name:
Limnanthes douglasii R. Br. ssp. sulphurea (C.T. Mason) C.T. Mason
Common Name:
Point Reyes meadowfoam
Family: Limnanthaceae
Element Code: PDLIM02038
USDA Plants Symbol: LIDOS2
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: CE (1982-04-01)
Global Rank: G4T1
State Rank:
 S1
Other Status: SB_UCBG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-12-06

  Ecology and Life History

Lifeform: annual herb
Blooming Period: Mar-May
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Elevation:
0 - 140 meters
0 - 460 feet
General Habitats:
  • Coastal prairie
  • Meadows and seeps (mesic)
  • Marshes and swamps (freshwater)
  • Vernal pools
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Known from fewer than fifteen occurrences. Threatened by grazing, trampling, and non-native plants. See University of California Publications in Botany 25:477 (1952) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 11 92 %
THREAT LIST:
Grazing 10 83%
Foot traffic/trampling 5 41%
Other 4 33%
Road/trail construction/maint. 3 25%
Non-native plant impacts 3 25%

  Occurrence Data from the CNDDB

Total Occurrences: 12
Element Occurrence Ranks:
A B C D X U
0 8 3 1 0 0
Occurrence Status:
Historical >20 Years 6
Recent <=20 Years 6
Presence:
Presumed Extant 12
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN), San Mateo (SMT)
Quads: Name (Quad Code)
Drakes Bay (3812218), Franklin Point (3712223)
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

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2023. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 29 November 2023].