CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record hordeum_intercedens - Fri, Nov. 26, 2021 18:13 ET c
Hordeum intercedens
common namevernal barley
CalPhotos image
more photos
© 2006 Steve Matson  Follow image link for photo data.
life formannual herb
CA Rare Plant Rank
List 3.2
LIST 3: We need more information about this plant (Review List).
     0.2: Fairly endangered in California
state rank
S3S4   S3S4: Intermediate between S3 and S4
global rank
G3G4   G3G4: Intermediate between G3 and G4
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (67):
Potrero (009D) 3211655, Jamul Mountains (010B) 3211668, Otay Mesa (010C) 3211658, National City (011A) 3211761, Point Loma (011B) 3211762, Poway (022A) 3211781, Del Mar (022B) 3211782, La Jolla (022C) 3211772, La Mesa (022D) 3211771, Santa Ysabel (033C) 3311616, San Marcos (035B) 3311722, San Luis Rey (036A) 3311723, Encinitas (036D) 3311713, Fallbrook (051A) 3311743, Margarita Peak (051B) 3311744, Las Pulgas Canyon (051C) 3311734, Morro Hill (051D) 3311733, San Clemente (052A) 3311745, Dana Point (052B) 3311746, San Onofre Bluff (052D) 3311735, Winchester (068A) 3311761, Murrieta (068C) 3311752, Lake Elsinore (069A) 3311763, El Toro (070B) 3311766, San Juan Capistrano (070C) 3311756, Tustin (071A) 3311767, Newport Beach (071B) 3311768, Laguna Beach (071D) 3311757, El Casco (085A) 3311781, Perris (085C) 3311772, Lakeview (085D) 3311771, Black Star Canyon (087C) 3311776, Inglewood (090A) 3311883, Venice (090B) 3311884, Los Angeles (110C) 3411812, Canoga Park (112A) 3411825, Newbury Park (113B) 3411828, Triunfo Pass (113C) 3411818, Santa Barbara (142B)* 3411946, Whitaker Peak (163C) 3411856, Stevens (240C) 3511932, Pixley (288A) 3511983, Exeter (333C) 3611932, Monson (334A) 3611943, Vanguard (336C) 3611938, Ciervo Mountain (339A) 3612045, San Benito Mountain (339C) 3612036, San Felipe (385B) 3612184, Stevinson (423D) 3712037, Lee Vining (453A) 3711981, Soda Springs (555C) 3912034, Anacapa Island (ANAC), Santa Barbara Island (SBRA), San Clemente Island Central (SCMC), San Clemente Island North (SCMN), San Clemente Island South (SCMS), Santa Catalina Island East (SCTE), Santa Catalina Island North (SCTN), Santa Catalina Island South (SCTS), Santa Catalina Island West (SCTW), Santa Cruz Island A (SCZA), Santa Cruz Island B (SCZB), Santa Cruz Island C (SCZC), Santa Cruz Island D (SCZD), San Nicolas Island (SNIC), Santa Rosa Island East (SROE), Santa Rosa Island South (SROS)
quad data info

Counties, states, regions:
Anacapa Isl. (ANA), Fresno (FRE), Kings (KNG), Kern (KRN), Los Angeles (LAX), Merced (MER), Mono (MNO), Nevada (NEV), Orange (ORA), Riverside (RIV), Santa Barbara (SBA), Santa Barbara Isl. (SBR), San Benito (SBT), San Clemente Isl. (SCM), Santa Catalina Isl. (SCT), Santa Cruz Isl. (SCZ), San Diego (SDG), San Miguel Isl. (SMI), San Mateo (SMT), San Nicolas Isl. (SNI), Santa Rosa Isl. (SRO), Tulare (TUL), Ventura (VEN), Baja California (BA)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Coastal dunes (CoDns)
•Coastal scrub (CoScr)
•Valley and foothill grassland (VFGrs)(saline flats and depressions)
•Vernal pools (VnPls)
blooming period Mar-Jun  
elevation range5 - 1000 meters
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.
full nameHordeum intercedens Nevski
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  HOIN2 Element Code  PMPOA380E0
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Fri, Nov. 26, 2021 from

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