Taxon Report

Erysimum suffrutescens (Abrams) Rossbach

suffrutescent wallflower

Print Report

Taxon Summary

Erysimum suffrutescens, commonly known as suffrutescent wallflower, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Chaparral (maritime), Coastal bluff scrub, Coastal dunes, and Coastal scrub, growing at elevations from 0 to 150 meters. Erysimum suffrutescens is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Erysimum suffrutescens (Abrams) Rossbach
Common Name:	suffrutescent wallflower
Family:	Brassicaceae
Element Code:	PDBRA160D2
USDA Plants Symbol:
Synonyms/Other Names:	Erysimum suffrutescens (Abrams) Rossbach var. suffrutescens Erysimum suffrutescens (Abrams) Rossbach var. grandifolium Rossbach Erysimum insulare ssp. suffrutescens

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jan-Jul(Aug)	Jan-Jul(Aug)
Elevation:	0-150 (0-490)
General Habitats:	Chaparral, Coastal bluff scrub, Coastal dunes, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_SBBG
CRPR Changes:

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)
Los Angeles (LAX), San Luis Obispo (SLO), Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Casmalia (3412075), Gaviota (3412042), Guadalupe (3412085), Lompoc (3412064), Morro Bay North (3512047), Morro Bay South (3512037), Oceano (3512015), Pismo Beach (3512026), Point Arguello (3412056), Point Conception (3412044), Point Mugu (3411911), Point Sal (3412086), Redondo Beach (3311874), Sacate (3412043), San Luis Obispo (3512036), Santa Maria (3412084), Surf (3412065), Torrance (3311873), Tranquillon Mtn. (3412055), Venice (3311884)

Threat List Data from the CNDDB


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

Notes



Threatened by coastal development, vehicles, and non-native plants. Includes E. suffrutescens var. grandifolium. Hybridizes locally with E. capitatum.
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 9 May 2025].