Quercus lobata
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Quercus lobata

valley oak
Roble oak
California white oak

  family fagaceae 
  genus quercus 

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Identification
Genus  Quercus Species  lobata Variety  Cultivar  Common names  valley oak   Roble oak   California white oak Family  FAGACEAE Specimen number  S13973 Data source  Allergy p264;BtrflyCa p141;BtrflyCa p189;DyeFib p125
 
Life cycle
Life form  Terrestrial Life cycle  Woody perennial Life span  5 - 20 years Annual cycle  Depends on climate Stature  Tree Growth form  Various Growth habit    Overall height    Overall spread   
 
Climate
Sunshine  Various Water  Various Optimal soil texture  Various Acceptable soil pH  Various USDA hardiness  Not classified AHS heat zones  Not classified Sunset climate zones  Not classified
 
Garden
Suitable for gardens  no Nursery  Unknown Compost  no Size at acquisition  Unknown Garden location  Unknown Garden notes  Quercus lobata is a host plant for the California hairstreak butterfly as well as the mournful duskywing butterfly. The inner bark of California white oak (also known as valley oak and Roble oak) has been used in traditional fabric dyeing. Buff brown and buff brown are common colors produced with this plant.
 
Special qualities
Tolerates drought  no Tolerates high humidity  no Tolerates seaside conditions  no Insect resistant  no Disease resistant  no Deer resistant  no Best uses    Symbiosis  Satyrium californicum (California hairstreak butterfly);Erynnis tristis (mournful duskywing butterfly) Attracts butterflies  yes Attracts hummingbirds  no Autumn foliage  no Colorful berries  no Desirable qualities    Other interest    Other interest color  Other interest period   
 
Adverse factors
Common pests  Poisonous parts  Poisonous indications  Internal poison  no Dermatologic poison  no Livestock poison  no Mechanical injury  no Hay fever pollen  Light Hay fever season  Mar 01 - Apr 30 Adverse qualities   
 
Herbal medicine
Medicinal properties  Medicinal parts  Has medicinal uses  no Do not self-administer  no Do no use if pregnant  no Legally restricted  no Toxicity precautions  Medicinal notes  This is a light producer of pollen but should cause problems to only the most sensitive hay fever sufferers. Hay fever season usually extends from March to April.
 
Traditional uses
Parts used  Traditional uses  Contemporary uses  Fragrance  Fragrance parts  Fragrance intensity    Fragrance category    Dye parts  Inner bark Dye color  buff brown,black
 
Cultivation
Propagule  Various Pollination method    Planting style    Crop spacing    Row spacing    Cold frame  Planting period    Harvesting period    Frost tolerance    Heat requirement    Fertilizer  Typical Time to harvest 
 
Nutrition
Is edible  no Culinary uses  Nutritional value  Edible parts  Description of edible parts Flavor / texture 
 
Horticulture
Horticulture notes  Quercus lobata is a native plant in the natural environment that occurs throughout California. California white oak (in some places called valley oak and Roble oak) is considered to have originated from North America.
 
Herbarium
Tag needs printing  no Collection notes  Quercus lobata is a woody perennial.

Page 3973 of 4998

Last reviewed November 01, 2004   

 

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