Taxon Report

Adolphia californica Wats.

California adolphia

Print Report

© 2007 Andrew Borcher

Classification


Scientific Name:	Adolphia californica Wats.
Common Name:	California adolphia
Family:	Rhamnaceae
Element Code:	PDRHA01010
USDA Plants Symbol:	ADCA2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial deciduous shrub
Blooming Period: Dec-May	Dec-May
Elevation:	10-740 (35-2430)
General Habitats:	Chaparral, Coastal scrub, Valley and foothill grassland
Microhabitat:	Clay
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.1
Global Rank:	G3
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; SB_CRES
CRPR Changes:	changed from 2.1 to 2B.1 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	136
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	21
Fair (C)	7
Poor (D)	2
None (X)	10
Unknown (U)	96

Location


California Endemic: False
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Del Mar (3211782), Encinitas (3311713), Escondido (3311711), Imperial Beach (3211751), Jamul Mountains (3211668), La Jolla (3211772), La Mesa (3211771), National City (3211761), Otay Mesa (3211658), Point Loma (3211762), Poway (3211781), Rancho Santa Fe (3311712), San Luis Rey (3311723), San Marcos (3311722), San Vicente Reservoir (3211688)

Threat List Data from the CNDDB


Threat List Total:	10
EOs with Threat Listed:	Total EOs	% of EOs
	77	57 %
Development	67	49%
Road/trail construction/maint.	19	13%
Non-native plant impacts	6	4%
Wood cutting or brush clearing	6	4%
Other	5	3%
Grazing	4	2%
ORV activity	3	2%
Vandalism/dumping/litter	3	2%
Agriculture	3	2%
Recreational use (non-ORV)	2	1%

Notes



Threatened by urbanization, road construction, non-native plants, development and grazing.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].