Species Details

Lepidium virginicum var. robinsonii

Robinson's pepper-grass

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Photo of Lepidium virginicum var. robinsonii

Classification

Scientific Name: Lepidium virginicum L. var. robinsonii (Thell.) Hitchc.
Common Name: Robinson's pepper-grass
Family:	Brassicaceae
Element Code:	PDBRA1M114
USDA Plants Symbol:	LEVIR
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G5T3
State Rank:	S3
Other Status:
CRPR Changes: changed from 1B.2 to 4.3 on 2013-06-24
Add Date:	1994-01-01
Date Edited:	2022-01-05

Ecology and Life History

Lifeform: annual herb

Blooming Period: Jan-Jul

Elevation:
1 - 885 meters
5 - 2905 feet

General Habitats:

Chaparral
Coastal scrub

Microhabitat Details:

Microhabitat:

Notes

Notes: Previously CRPR 1B.2; more common than originally known. Threatened by development. Possibly threatened by non-native plants. A synonym of L. virginicum ssp. menziesii in TJM 2. See Mitteilungen aus dem Botanischen Museum der Universität Zürich 28:255-256 (1906) for original description and Madroño 3(7):265-320 (1936) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	8	6 %
Non-native plant impacts	3	2%
Road/trail construction/maint.	2	1%
Development	2	1%
Foot traffic/trampling	2	1%
Grazing	1	0%
Wood cutting or brush clearing	1	0%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					142
A	B	C	D	X	U
1	6	5	1	1	128

Occurrence Status:
Historical >20 Years	99
Recent <=20 Years	43

Presence:
Presumed Extant	141
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Baja California (BA), California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX), Mono (MNO), Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG), Santa Barbara (SBA), Ventura (VEN)

Quads: Name (Quad Code)
Aguanga (3311647), Alberhill (3311764), Alpine (3211677), Azusa (3411728), Bachelor Mtn. (3311751), Barrett Lake (3211666), Beauty Mountain (3311646), Black Star Canyon (3311776), Bucksnort Mtn. (3311645), Butterfly Peak (3311655), Campo (3211654), Corona North (3311785), Corona South (3311775), Del Mar (3211782), Dulzura (3211667), El Cajon (3211678), El Cajon Mtn. (3211687), El Casco (3311781), El Toro (3311766), Encinitas (3311713), Escondido (3311711), Fallbrook (3311743), Fontana (3411714), Glendora (3411727), Hemet (3311668), Imperial Beach (3211751), Jamul Mountains (3211668), La Jolla (3211772), La Mesa (3211771), Lake Elsinore (3311763), Lake Mathews (3311774), Las Pulgas Canyon (3311734), Lompoc (3412064), Los Angeles (3411812), Margarita Peak (3311744), Morena Reservoir (3211665), Morro Hill (3311733), Mount Dana (3711982), Mt. Baldy (3411726), Mt. Wilson (3411821), Murrieta (3311752), National City (3211761), Newbury Park (3411828), Ojai (3411942), Ontario (3411716), Otay Mesa (3211658), Otay Mountain (3211657), Pala (3311731), Pechanga (3311741), Point Loma (3211762), Poway (3211781), Prado Dam (3311786), Rancho Santa Fe (3311712), Redlands (3411712), Riverside East (3311783), Riverside West (3311784), Rodriquez Mtn. (3311628), Romoland (3311762), Sage (3311658), San Bernardino South (3411713), San Clemente (3311745), San Clemente Island North (3211885), San Clemente Island South (3211873), San Dimas (3411717), San Fernando (3411834), San Luis Rey (3311723), San Marcos (3311722), San Nicolas Island (3311924), San Onofre Bluff (3311735), San Pasqual (3311618), San Vicente Reservoir (3211688), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santiago Peak (3311765), Sitton Peak (3311754), Steele Peak (3311773), Sunland (3411833), Sunnymead (3311782), Surf (3412065), Tecate (3211656), Temecula (3311742), Tustin (3311767), Vail Lake (3311648), Valley Center (3311721), Viejas Mountain (3211676), Winchester (3311761), Yorba Linda (3311787), Yucaipa (3411711)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

Selected References

CNPS Status Review:

CRPR List Change on 2013-06-24