Taxon Report

Erysimum capitatum (Douglas) Greene var. lompocense (Rossbach) Price

San Luis Obispo wallflower

Print Report

Taxon Summary

Erysimum capitatum var. lompocense, commonly known as San Luis Obispo wallflower, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Chaparral, and Coastal scrub, growing at elevations from 60 to 500 meters. Erysimum capitatum var. lompocense is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Erysimum capitatum (Douglas) Greene var. lompocense (Rossbach) Price
Common Name:	San Luis Obispo wallflower
Family:	Brassicaceae
Element Code:	PDBRA16057
USDA Plants Symbol:	ERCAL2
Synonyms/Other Names:	Erysimum suffrutescens (Abrams) Rossbach var. lompocense Rossbach

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Feb-May	Feb-May
Elevation:	60-500 (195-1640)
General Habitats:	Chaparral, Coastal scrub
Microhabitat:	Sandy
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G5T3
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)
San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Casmalia (3412075), Lompoc (3412064), Lompoc Hills (3412054), Los Alamos (3412063), Los Olivos (3412061), Morro Bay South (3512037), Nipomo (3512014), Oceano (3512015), Orcutt (3412074), Sisquoc (3412073), Solvang (3412052), Surf (3412065), Zaca Creek (3412062)

Threat List Data from the CNDDB


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

Notes



Intergrades locally with ssp. capitatum and E. insulare ssp. suffrutescens.
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].