CNPS

CNPS Rare Plant Inventory

Species Details

Carex obispoensis

San Luis Obispo sedge

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Classification

Scientific Name:
Carex obispoensis Stacey
Common Name:
San Luis Obispo sedge
Family: Cyperaceae
Element Code: PMCYP039J0
USDA Plants Symbol: CAOB2
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G3?
State Rank:
 S3?
Other Status: BLM_S; SB_SBBG; USFS_S
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-06-08

Ecology and Life History

Lifeform: perennial cespitose herb
Blooming Period: Apr-Jun
Elevation:
10 - 820 meters
35 - 2690 feet
General Habitat:
  • Closed-cone coniferous forest
  • Chaparral
  • Coastal prairie
  • Coastal scrub
  • Valley and foothill grassland
General Micro Habitat: often on clay soils
Micro Habitat:
  • Clay (often)
  • Gabbroic (sometimes)
  • Seeps (often)
  • Serpentinite (often)

Notes

Notes:
Threatened by grazing, non-native plants, military activities, and mining. Possibly threatened by recreational activities.
Threats:
Taxonomy:
Other:

Occurrence Data from the CNDDB

Total Occurrences: 29
Element Occurrence Ranks:
A B C D X U
4 3 2 0 0 20
Occurrence Status:
Historical >20 Years 16
Recent <=20 Years 13
Presence:
Presumed Extant 29
Possibly Extirpated 0
Presumed Extirpated 0

Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Monterey (MNT), San Diego (SDG), San Luis Obispo (SLO)
Quads: Name (Quad Code)
Alpine (3211677), Atascadero (3512046), Big Sur (3612137), Burnett Peak (3512172), Cambria (3512151), Cape San Martin (3512184), Dulzura (3211667), Lopez Mtn. (3512035), Lopez Point (3612115), Morro Bay South (3512037), Pebblestone Shut-in (3512161), Piedras Blancas (3512163), Pismo Beach (3512026), San Luis Obispo (3512036), San Simeon (3512162), Santa Margarita Lake (3512034)
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
Print this Map
Counties   Quads

Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2022. Rare Plant Inventory (online edition, v9-01 1.5). Website https://www.rareplants.cnps.org [accessed 11 August 2022].