Species Details

Ceanothus impressus var. impressus

Santa Barbara ceanothus

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Photo of Ceanothus impressus var. impressus

Classification

Scientific Name: Ceanothus impressus Trel. var. impressus
Common Name: Santa Barbara ceanothus
Family:	Rhamnaceae
Element Code:	PDRHA040L1
USDA Plants Symbol:	CEIMI
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3T3
State Rank:	S3
Other Status:
CRPR Changes: changed from CBR to 1B.2 on 2019-05-15 Considered But Rejected on 2006-01-10
Add Date:	2006-01-10
Date Edited:	2023-08-01

Ecology and Life History

Lifeform: perennial shrub

Blooming Period: Feb-Apr

Elevation:
40 - 470 meters
130 - 1540 feet

General Habitats:

Chaparral

Microhabitat Details:

Microhabitat:

Sandy

Notes

Notes: See Proceedings of the California Academy of Sciences, Series 2 1(8):112 (1888) for original description and Ceanothus pp. 219-220 (1942) by H. McMinn for revised nomenclature.
Threats: Possibly threatened by development, non-native plants, and road and trail construction and maintenance.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	9	24 %
Development	7	18%
Road/trail construction/maint.	2	5%
Improper burning regime	1	2%
Non-native plant impacts	1	2%
Other	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					37
A	B	C	D	X	U
0	0	1	1	0	35

Occurrence Status:
Historical >20 Years	32
Recent <=20 Years	5

Presence:
Presumed Extant	37
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Santa Barbara (SBA)

Quads: Name (Quad Code)
Casmalia (3412075), Guadalupe (3412085), Lompoc (3412064), Los Alamos (3412063), Point Arguello (3412056), Point Sal (3412086), Surf (3412065), Tranquillon Mtn. (3412055)

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

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Selected References

CNPS Status Review:

Proposed Addition to CRPR 1B.2, G3T2 / S2 (2019)