CNPS

CNPS Rare Plant Inventory



Species Details

Ericameria nauseosa var. ceruminosa

sharp-bracted rabbitbrush

  View Report   Copy Link Calflora eFlora CCH CalPhotos iNaturalist
Photo of Ericameria nauseosa var. ceruminosa
Neal Kramer 		Photo of Ericameria nauseosa var. ceruminosa
Neal Kramer

Species Description:

Ericameria nauseosa var. ceruminosa, commonly known as sharp-bracted rabbitbrush, is a perennial evergreen shrub in the Asteraceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Great Basin scrub, Joshua tree "woodland", Mojavean desert scrub, Pinyon and juniper woodland, Riparian scrub, and Upper montane coniferous forest, growing at elevations from 780 to 1830 meters. Ericameria nauseosa var. ceruminosa is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

  Classification

Scientific Name:
Ericameria nauseosa (Pursh) G.L. Nesom & G.I. Baird var. ceruminosa (Durand & Hilg.) G.L. Nesom & G.I. Baird
Common Name:
sharp-bracted rabbitbrush
Family: Asteraceae
Element Code: PDAST2C0GD
USDA Plants Symbol: ERNAC3
Synonyms/Other Names:
Name Status: JEP, FNA, POWO,
IPNI, Tropicos

  Conservation Status

CA Rare Plant Rank: 4.2
Fed List: None
State List: None
Global Rank:
State Rank:
Other Status:
CRPR Changes:
added to 4.2 on 2024-11-15
Add Date: 2024-11-15
Date Edited: 2024-11-18

  Ecology and Life History

Lifeform: perennial evergreen shrub
Blooming Period: Sep-Oct(Nov)
JFMAMJJASOND
Elevation:
780 - 1830 meters
2560 - 6005 feet
General Habitats:
  • Chaparral
  • Cismontane woodland
  • Great Basin scrub
  • Joshua tree "woodland"
  • Mojavean desert scrub
  • Pinyon and juniper woodland
  • Riparian scrub
  • Upper montane coniferous forest
Microhabitat Details: Usually in dry areas within washes, river bottoms, alluvial plains, or alkaline basins on flats or gentle slopes.
Microhabitat:
  • Alkaline (sometimes)
  • Granitic (sometimes)
  • Gravelly (often)
  • Sandy (often)

  Notes

Notes:
Threats:
Threatened by development and solar energy development. Possibly threatened by grazing and alteration of fire regimes.
Taxonomy:
Distinct from other vars. in having recurved, acuminate phyllary apices (versus erect apices that are often wide and blunt).

  Threat List Data from the CNDDB

Threat List Total: 0
Total EOs % of EOs
EOs with Threat Listed: 0 0 %
THREAT LIST:

  Occurrence Data from the CNDDB

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

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Quads: Name (Quad Code)
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

Location Data is Forthcoming from the CNDDB
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

CNPS Status Review: Proposed addition to CRPR 4.2, G5T3 / S3 (2024)
Original Description: The Academy of Natural Sciences of Philadelphia 3 (second series): 37–46 (1855)
Revised Nomenclature: Phytologia 75: 74–93 (1993)

Go to top


Suggested Citation:
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 20 January 2025].
}