CNPS

CNPS Rare Plant Inventory

Species Details

Monardella undulata ssp. undulata

San Luis Obispo monardella

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  Classification

Scientific Name:
Monardella undulata Benth. ssp. undulata
Common Name:
San Luis Obispo monardella
Family: Lamiaceae
Element Code: PDLAM180X0
USDA Plants Symbol:
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2
State Rank:
 S2
Other Status: BLM_S; SB_SBBG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2023-01-13

  Ecology and Life History

Lifeform: perennial rhizomatous herb
Blooming Period: May-Sep
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Elevation:
10 - 200 meters
35 - 655 feet
General Habitats:
  • Coastal dunes
  • Coastal scrub (sandy)
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Threatened by coastal development and vehicles. Potentially threatened by non-native plants. Hybridizes with M. crispa. See Leaflets of Western Botany 5:179-182 (1949) for original description, and Phytologia 72(1):9-16 (1992) for revised nomenclature.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 9 43 %
THREAT LIST:
Non-native plant impacts 4 19%
ORV activity 4 19%
Road/trail construction/maint. 3 14%
Development 2 9%
Feral pigs 1 4%

  Occurrence Data from the CNDDB

Total Occurrences: 21
Element Occurrence Ranks:
A B C D X U
0 5 1 0 0 15
Occurrence Status:
Historical >20 Years 14
Recent <=20 Years 7
Presence:
Presumed Extant 21
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Casmalia (3412075), Nipomo (3512014), Oceano (3512015), Orcutt (3412074), Point Arguello (3412056), Point Sal (3412086), Surf (3412065)
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. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 21 November 2024].