Quercus engelmannii
Common Name: Engelmann oak
Family: Fagaceae
Element Code: PDFAG050K0
Full Name: Quercus engelmannii Greene

2015 Keir Morse
Biology Glossary
  • Lifeform: perennial deciduous tree
  • Blooming Period: March - June
  • Habitat:  
    • Chaparral
    • Cismontane woodland
    • Riparian woodland
    • Valley and foothill grassland
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences:
  • Element Occurrence Ranks:
    A B C D X U
  • Population Status:
    >20 yrs
    <=20 yrs
  • Presence:
    Present Extant Possibly Extirpated Extirpated
Notes Glossary
  • Only one tree remaining on SCT Isl. Threatened by development and grazing. Protected in part at the Santa Rosa Plateau Preserve (TNC), RIV Co. See Fremontia 18(3):26-35 (1990) for species account and ecological discussion.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1988-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 50 - 1300 meters
  • California Endemic: no
  • States: California, Baja California
  • California Counties and Islands:   name (code)
    Los Angeles (LAX),  Orange (ORA),  Riverside (RIV),  Santa Catalina Island (SCT),  San Diego (SDG)
  • Quads:   name (DWR code) USGS code
    Barrett Lake (009B) 32116F6,  Dulzura (010A) 32116F7,  Jamul Mountains (010B) 32116F8,  Otay Mesa (010C) 32116E8,  Cuyamaca Peak (020A) 32116H5,  Tule Springs (020B) 32116H6,  Viejas Mountain (020C) 32116G6,  El Cajon Mtn. (021A) 32116H7,  San Vicente Reservoir (021B) 32116H8,  El Cajon (021C) 32116G8,  Alpine (021D) 32116G7,  Earthquake Valley (032C) 33116A4,  Ranchita (033A) 33116B5,  Warners Ranch (033B) 33116B6,  Santa Ysabel (033C) 33116A6,  Julian (033D) 33116A5,  Mesa Grande (034A) 33116B7,  Rodriquez Mtn. (034B) 33116B8,  San Pasqual (034C) 33116A8,  Ramona (034D) 33116A7,  Valley Center (035A) 33117B1,  San Marcos (035B) 33117B2,  Rancho Santa Fe (035C) 33117A2,  Escondido (035D) 33117A1,  Encinitas (036D) 33117A3,  Boucher Hill (049C) 33116C8,  Palomar Observatory (049D) 33116C7,  Pechanga (050A) 33117D1,  Temecula (050B) 33117D2,  Bonsall (050C) 33117C2,  Pala (050D) 33117C1,  Fallbrook (051A) 33117D3,  Margarita Peak (051B) 33117D4,  Las Pulgas Canyon (051C) 33117C4,  Murrieta (068C) 33117E2,  Sitton Peak (069C) 33117E4,  Yorba Linda (088A) 33117H7,  La Habra (088B) 33117H8,  Azusa (109B) 34117B8,  San Dimas (109D) 34117A7,  Mt. Wilson (110A) 34118B1,  Pasadena (110B) 34118B2
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Quad data is not available for all List 3 and 4 plants. For those that do contain this data, it has not been quality controlled and is potentially incomplete, inaccurate, and/or out of date. Please use caution when referencing this information. We are currently working hard to maintain this data and hope to provide accurate and up to date information in the near future.
Presumed Extant Presumed Extirpated or Unknown 1408
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].

32116F6=Barrett Lake (009B) 32116F6;32116F7=Dulzura (010A) 32116F7;32116F8=Jamul Mountains (010B) 32116F8;32116E8=Otay Mesa (010C) 32116E8;32116H5=Cuyamaca Peak (020A) 32116H5;32116H6=Tule Springs (020B) 32116H6;32116G6=Viejas Mountain (020C) 32116G6;32116H7=El Cajon Mtn. (021A) 32116H7;32116H8=San Vicente Reservoir (021B) 32116H8;32116G8=El Cajon (021C) 32116G8;32116G7=Alpine (021D) 32116G7;33116A4=Earthquake Valley (032C) 33116A4;33116B5=Ranchita (033A) 33116B5;33116B6=Warners Ranch (033B) 33116B6;33116A6=Santa Ysabel (033C) 33116A6;33116A5=Julian (033D) 33116A5;33116B7=Mesa Grande (034A) 33116B7;33116B8=Rodriquez Mtn. (034B) 33116B8;33116A8=San Pasqual (034C) 33116A8;33116A7=Ramona (034D) 33116A7;33117B1=Valley Center (035A) 33117B1;33117B2=San Marcos (035B) 33117B2;33117A2=Rancho Santa Fe (035C) 33117A2;33117A1=Escondido (035D) 33117A1;33117A3=Encinitas (036D) 33117A3;33116C8=Boucher Hill (049C) 33116C8;33116C7=Palomar Observatory (049D) 33116C7;33117D1=Pechanga (050A) 33117D1;33117D2=Temecula (050B) 33117D2;33117C2=Bonsall (050C) 33117C2;33117C1=Pala (050D) 33117C1;33117D3=Fallbrook (051A) 33117D3;33117D4=Margarita Peak (051B) 33117D4;33117C4=Las Pulgas Canyon (051C) 33117C4;33117E2=Murrieta (068C) 33117E2;33117E4=Sitton Peak (069C) 33117E4;33117H7=Yorba Linda (088A) 33117H7;33117H8=La Habra (088B) 33117H8;34117B8=Azusa (109B) 34117B8;34117A7=San Dimas (109D) 34117A7;34118B1=Mt. Wilson (110A) 34118B1;34118B2=Pasadena (110B) 34118B2