CNPS

CNPS Rare Plant Inventory

Species Details

Dudleya cymosa ssp. agourensis

Agoura Hills dudleya

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Classification

Scientific Name:
Dudleya cymosa (Lemaire) Britton & Rose ssp. agourensis K. Nakai
Common Name:
Agoura Hills dudleya
Family: Crassulaceae
Element Code: PDCRA040A7
USDA Plants Symbol: DUCYA
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: FT (1997-01-29)
State List: None
Global Rank: G5T1
State Rank:
 S1
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2021-12-09

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Jun
Elevation:
200 - 500 meters
655 - 1640 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
General Micro Habitat:
Micro Habitat:
  • Rocky
  • Volcanic

Notes

Notes:
Known only from the western Santa Monica Mtns. Threatened by development. Possibly threatened by foot traffic. A synonym of D. cymosa ssp. ovatifolia in The Jepson Manual; USFWS also uses this name. See Madroño 34(4):339 (1987) for original description.
Threats:
Taxonomy:
Other:

Occurrence Data from the CNDDB

Total Occurrences: 8
Element Occurrence Ranks:
A B C D X U
2 3 0 0 0 3
Occurrence Status:
Historical >20 Years 3
Recent <=20 Years 5
Presence:
Presumed Extant 8
Possibly Extirpated 0
Presumed Extirpated 0

Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), Ventura (VEN)
Quads: Name (Quad Code)
Point Dume (3411817), Thousand Oaks (3411827), Triunfo Pass (3411818)
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 4 July 2022].