Taxon Report

Hordeum intercedens Nevski

vernal barley

Print Report

Classification


Scientific Name:	Hordeum intercedens Nevski
Common Name:	vernal barley
Family:	Poaceae
Element Code:	PMPOA380E0
USDA Plants Symbol:	HOIN2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Mar-Jun	Mar-Jun
Elevation:	5-1000 (15-3280)
General Habitats:	Coastal dunes, Coastal scrub, Valley and foothill grassland, Vernal pools
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	3.2
Global Rank:	G3G4
State Rank:	S3S4
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:	changed from 3.2 to 3.2 on 2013-09-04

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: False
California Counties and Islands: Name (Code)
Fresno (FRE), Kern (KRN), Los Angeles (LAX), Merced (MER), Orange (ORA), Riverside (RIV), San Benito (SBT), San Diego (SDG), Santa Barbara (SBA), Tulare (TUL), Ventura (VEN)
Quads: Name (Quad Code)
Alberhill (3311764), Anacapa Island (3311983), Black Star Canyon (3311776), Ciervo Mtn. (3612045), Dana Point (3311746), Descanso (3211675), El Cajon Mtn. (3211687), El Casco (3311781), El Monte (3411811), El Toro (3311766), Encinitas (3311713), Fallbrook (3311743), Gustine (3712038), Imperial Beach (3211751), Inglewood (3311883), Jamul Mountains (3211668), La Jolla (3211772), La Mesa (3211771), Laguna Beach (3311757), Lake Elsinore (3311763), Lakeview (3311771), Las Pulgas Canyon (3311734), Los Angeles (3411812), Margarita Peak (3311744), Monson (3611943), Morro Hill (3311733), Murrieta (3311752), National City (3211761), Newbury Park (3411828), Newport Beach (3311768), Oceanside (3311724), Otay Mesa (3211658), Perris (3311772), Pixley (3511983), Point Loma (3211762), Riverside East (3311783), San Benito Mtn. (3612036), San Clemente (3311745), San Clemente Island Central (3211874), San Clemente Island North (3211885), San Clemente Island South (3211873), San Juan Capistrano (3311756), San Luis Rey (3311723), San Marcos (3311722), San Miguel Island West (3312084), San Nicolas Island (3311924), San Onofre Bluff (3311735), San Pasqual (3311618), Santa Barbara (3411946)*, Santa Barbara Island (3311848), Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina South (3311834), Santa Catalina West (3311845), Santa Cruz Island A (3311987), Santa Rosa Island South (3312071), Santa Ysabel (3311616), Steele Peak (3311773), Stevens (3511932), Stevinson (3712037), Tustin (3311767), Venice (3311884), Viejas Mountain (3211676), Warm Springs Mountain (3411855), Whitaker Peak (3411856), Winchester (3311761)

Threat List Data from the CNDDB


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

Notes



Move to CRPR 1B or 4? Many herbarium specimens of H. intercedens are possible misidentifications of H. depressum; need annotations. Many mainland occurrences are in decline or possibly extirpated; need field surveys. Threatened by development, habitat loss, road construction, and non-native plants. Previously confused with H. pusillum. Similar to H. depressum; the two may hybridize in RIV Co. See Acta Inst. Bot. Acad. Sci. U.R.S.S. Ser. 1, Fasc. 5:222 (1941) for original description and Nordic Journal of Botany 2:307-321 (1982) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

CRPR List Change on 2013-09-04

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].