Oak Species, Varieties, and Hybrids in California by Lineage Group (Subgenus) Life Form Red Oaks (Erythrobalanus)
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Oak Species, Varieties, and Hybrids in California by Lineage Group (Subgenus) Life Form Red Oaks (Erythrobalanus) *Quercus agrifolia Coast Live Oak ET Quercus agrifolia var. oxyadenia (var. in S. Cal and Baja) ET Quercus ilex1 Holly Oak (native to Med.) ET *Quercus kelloggii California Black Oak DT Quercus parvula var. parvula Santa Cruz Island Oak ES *Quercus parvula var. shrevei Shreve Oak ET *Quercus parvula var. tamalpaisensis Tamalpais oak ES *Quercus wislizeni var. frutescens Dwarf Interior Live Oak ES *Quercus wislizeni var. wislizeni Interior Live Oak ET Quercus X chasei Chase Oak (Hybrid of Q. agrifolia & Q. kelloggii) DT Quercus X moreha Oracle Oak (Hybrid of Q. kelloggii & Q. wislizeni) DT Intermediate Oaks (Protobalanus) Quercus cedrosensis Cedros Island Oak ET *Quercus chrysolepis Canyon Live Oak, Golden Oak, Maul Oak ET *Quercus vaccinifolia Huckleberry Oak ES Quercus palmeri Palmers Oak ES Quercus tomentella Island Oak ET White Oaks (Lepidobalanus) *Quercus berberidifolia Scrub Oak ES *Quercus douglasii Blue Oak DT *Quercus durata var. durata Leather Oak ES Quercus durata var. gabrielensis San Gabriel oak ES *Quercus garryana var. breweri Brewer’s Oak DS *Quercus garryana var. garryana Oregon or Garry Oak DT *Quercus garryana var. semota DS *Quercus lobata Valley Oak DT *Quercus sadleriana Deer Oak ES Quercus cornelius-mulleri Muller’s Oak ES Quercus dumosa Nuttall’s Scrub oak ES Quercus engelmanii Engelmann or Mesa Oak ET Quercus john-tuckeri Tucker’s Oak ES Quercus pacifica Pacific Oak ES Quercus turbinella Shrub Live Oak ES Quercus X acutidens X acutidens (Hybrid of Q. cornelius-mulleri & Q. engelmannii) ETorS Quercus X alvordiana Alford Oak (Hybrid of Q. douglasii & Q. john-tuckeri) ETorS Quercus X macdonaldii MacDonald Oak (Hybrid of Q. berberidifolia & Q. lobata) DT Quercus X eplingii Epling Oak (Hybrid of Q. garryana & Q. douglasii) DT Quercus X howellii Howell Oak (Hybrid of Q. garryana & Q. berberidifolia) DSorT Quercus X subconvexa Hybrid of Q. garryana or Q. douglasii & Q. durata DSorT Lifeform: E = Evergreen, D = Deciduous, T = Tree, S = Shrub * Occurs in northwest California 1 non-native species .