Species Details

Frangula purshiana ssp. ultramafica

Caribou coffeeberry

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Photo of Frangula purshiana ssp. ultramafica

Classification

Scientific Name: Frangula purshiana Cooper ssp. ultramafica J.O. Sawyer & S.W. Edwards
Common Name: Caribou coffeeberry
Family:	Rhamnaceae
Element Code:	PDRHA0H061
USDA Plants Symbol:	FRPUU
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G5T2T3
State Rank:	S2S3
Other Status:	SB_UCSC; USFS_S
CRPR Changes: added to 1B.2 on 2008-02-14
Add Date:	2008-02-14
Date Edited:	2024-08-06

Ecology and Life History

Lifeform: perennial deciduous shrub

Blooming Period: May-Jul

Elevation:
825 - 1930 meters
2705 - 6330 feet

General Habitats:

Chaparral
Lower montane coniferous forest
Meadows and seeps
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Serpentine

Notes

Notes: Threatened by road maintenance, mining, and vehicles. Not in TJM (1993). See Madroño 54(2): 172-174 (2007) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	11
	Total EOs	% of EOs
EOs with Threat Listed:	19	53 %
Road/trail construction/maint.	12	33%
Logging	7	19%
Improper burning regime	5	13%
Other	4	11%
Mining	2	5%
Non-native plant impacts	2	5%
Altered flood/tidal/hydrologic regime	2	5%
Erosion/runoff	2	5%
Foot traffic/trampling	1	2%
Development	1	2%
ORV activity	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					36
A	B	C	D	X	U
3	4	0	0	0	29

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	36

Presence:
Presumed Extant	36
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Butte (BUT), Plumas (PLU), Sierra (SIE)

Quads: Name (Quad Code)
Belden (4012113), Bucks Lake (3912182), Caribou (4012112), Haskins Valley (3912172), La Porte (3912068), Meadow Valley (3912181), Onion Valley (3912078), Paradise East (3912175), Quincy (3912088), Soapstone Hill (3912173), Spring Garden (3912087), Twain (4012111)

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:

CRPR List Addition on 2008-02-14