Taxon Report

Ribes amarum McClat. var. hoffmannii Munz

Hoffmann's bitter gooseberry

Print Report

Taxon Summary

Ribes amarum var. hoffmannii, commonly known as Hoffmann's bitter gooseberry, is a perennial deciduous shrub in the Grossulariaceae that is found only in California. It occurs within Chaparral, and Riparian woodland, growing at elevations from 5 to 1190 meters. Ribes amarum var. hoffmannii is ranked 3, Plants About Which We Need More Information, A Review List.

Classification


Scientific Name:	Ribes amarum McClat. var. hoffmannii Munz
Common Name:	Hoffmann's bitter gooseberry
Family:	Grossulariaceae
Element Code:	PDGRO02012
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial deciduous shrub
Blooming Period: Mar-Apr	Mar-Apr
Elevation:	5-1190 (15-3905)
General Habitats:	Chaparral, Riparian woodland
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	3
Global Rank:	G4?T3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 3 to 3 on 2013-02-01

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Diego (SDG), Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Carpinteria (3411945), Julian (3311615), Point Conception (3412044), Santa Barbara (3411946), Santa Ynez (3412051), White Ledge Peak (3411944)

Threat List Data from the CNDDB


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

Notes



Move to List 1B? Location, rarity, and endangerment information needed. Expected to only occur in the Santa Ynez Mtns., but plants are also recorded from the San Rafael Mtns. Taxonomic distinctiveness from R. amarum is uncertain; needs further study. Possibly threatened by non-native plants. A synonym of R. amarum in TJM (1993) and TJM 2.
Threats:

Taxonomy:

Selected References

CRPR List Deletion on 2013-02-01

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].