Species Details

Quercus engelmannii

Engelmann oak

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Species Description:

Quercus engelmannii, commonly known as Engelmann oak, is a perennial deciduous tree in the Fagaceae that is found in California and elsewhere. It occurs within Chaparral, Cismontane woodland, Riparian woodland, and Valley and foothill grassland, growing at elevations from 50 to 1300 meters. Quercus engelmannii is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification

Scientific Name: Quercus engelmannii Greene
Common Name: Engelmann oak
Family:	Fagaceae
Element Code:	PDFAG050K0
USDA Plants Symbol:	QUEN
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:	IUCN_EN; SB_CRES
CRPR Changes:
Add Date:	1988-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial deciduous tree

Blooming Period: Mar-Jun

Elevation:
50 - 1300 meters
165 - 4265 feet

General Habitats:

Chaparral
Cismontane woodland
Riparian woodland
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Notes

Notes: 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.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
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), Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)

Quads: Name (Quad Code)
Alberhill (3311764), Alpine (3211677), Azusa (3411728), Bachelor Mtn. (3311751), Barrett Lake (3211666), Beaumont (3311688), Blackburn Canyon (3311667), Bonsall (3311732), Boucher Hill (3311638), Cuyamaca Peak (3211685), Del Mar (3211782), Descanso (3211675), Dulzura (3211667), Earthquake Valley (3311614), El Cajon (3211678), El Cajon Mtn. (3211687), El Casco (3311781), Encinitas (3311713), Escondido (3311711), Fallbrook (3311743), Hemet (3311668), Hot Springs Mtn. (3311635), Jamul Mountains (3211668), Julian (3311615), La Habra (3311788), Lake Mathews (3311774), Las Pulgas Canyon (3311734), Live Oak Springs (3211663), Margarita Peak (3311744), Mesa Grande (3311627), Morena Reservoir (3211665), Morro Hill (3311733), Mount Laguna (3211674), Mt. Wilson (3411821), Murrieta (3311752), Otay Mesa (3211658), Otay Mountain (3211657), Pala (3311731), Palomar Observatory (3311637), Pasadena (3411822), Pechanga (3311741), Poway (3211781), Ramona (3311617), Ranchita (3311625), Rancho Santa Fe (3311712), Rodriquez Mtn. (3311628), San Dimas (3411717), San Jacinto (3311678), San Marcos (3311722), San Pasqual (3311618), San Vicente Reservoir (3211688), Santa Ysabel (3311616), Sitton Peak (3311754), Temecula (3311742), Tule Springs (3211686), Vail Lake (3311648), Valley Center (3311721), Viejas Mountain (3211676), Warner Springs (3311636), Warners Ranch (3311626), Waterman Mtn. (3411738), Wildomar (3311753), Winchester (3311761), Yorba Linda (3311787)

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

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CNPS Rare Plant Inventory