Blue Oak
Quercus douglasiifam. Fagaceae
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Pl. 9B7B — Quercus douglasii
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IPrezentare
Prezentare
Quercus douglasii, oacă albastru (Blue Oak), este un arbor deciduu nativ din California, care se adaptează în habitaturi de la condiții ușoare până la umide. Cunoscută pentru acornurile sale comestibile, această specie de oacă poate crește până la 12 metri și preferă luminătatea plină sau parțială cu sucuri medii sau grele (argila). Are o toleranță moderată pentru diferite niveluri de pH între 4,5 și 7,5, făcând-o adaptabilă în rândul său nativ. O caracteristică distinctivă a oacii albastrei este capacitatea sa de a furniza resurse alimentare importante prin acornurile sale, care sunt un important surse de aliment pentru viața selvatică și pot fi utilizate și de om.
Quick answers
What is Blue Oak?
Quercus douglasii, oacă albastru (Blue Oak), este un arbor deciduu nativ din California, care se adaptează în habitaturi de la condiții ușoare până la umide.
What is Blue Oak used for?
Traditionally used for digestion, immune support. Each claim is evidence-rated — see Section II for full citations.
Best for
Top 2 evidence-ranked uses of Blue Oak
Clinicaluses · safety · chemistry · dosagemedicinal profile
IIBeneficii și dovezi
2 claims · 0 sources
Beneficii și dovezi
2 claims · 0 sources- Blue Oak is traditionally used in Native American medicine to aid digestion, often prepared as a tea. It may help alleviate digestive discomfort and support gut health.
Tannins present in Blue Oak can have an astringent effect on the mucous membranes of the gastrointestinal tract, potentially reducing inflammation and improving gut function. However, specific mechanisms for Blue Oak are not fully characterised.
- Blue Oak is traditionally used in Native American medicine to support immune health, often prepared as a decoction. Its anti-inflammatory and antioxidant properties may help modulate the body's response to pathogens.
Quercetin, a flavonoid found in Blue Oak, has been shown to inhibit pro-inflammatory cytokines and reduce oxidative stress by scavenging free radicals. However, specific mechanisms for Blue Oak are not fully characterised.
IV·bMixology suggestions
1 draft
Mixology suggestions
1 draftEditorial drafts. These pairings are AI-suggested from traditional herbal lore. Always verify with a qualified herbalist before brewing.
Blue Oak support blend
generaltea
AI returned a direct ingredient list; normalized into one draft blend for editorial review.
Growingconditions · propagation · uses
VCultivare
Cultivare
Quercus douglasii, oacă albastru, se adaptează în luminătatea plină sau parțială și preferă condițiile umide până la ușoare, făcând-o adaptabilă în diverse mediuni din rândul său nativ din California. Crește cel mai bine în sucuri medii sau grele (argila) cu pH între 4,5 și 7,5. Această arbore este durabil în zonele 8-11 și poate atinge înălțimile de 12 metri. Pentru propagare, semințele sunt metoda recomandată. Asigurați-vă că are spațiu suficient deoarece este un arbore mare.
Light
Full sun, Partial sun/shade
Water
Dry, Moist
Soil
Medium, Heavy (clay)
Hardiness
8-11
Habit
Tree
Mature size
12.0 m tall
Soil pH
4.5–7.5
For first-time growers
How to grow Blue Oak for the first time
8steps
Start with planting a young Blue Oak tree for the best beginner experience.
- 1
What you'll need
A young Blue Oak sapling, well-draining soil, and a garden trowel.
- 2
Best time to plant
Plant in spring or fall when temperatures are mild.
- 3
Soil and container prep
Ensure the soil is well-draining with a pH between 4.5 and 7.5, and prepare a hole twice as wide but not deeper than the root ball.
- 4
Sowing or transplanting
Transplant the sapling into its permanent spot, ensuring it's at the same depth as in its container.
- 5
First two weeks
Water thoroughly after planting and keep the soil moist but not waterlogged for the first few weeks.
- 6
Ongoing care
Water deeply once a week during dry periods, mulch to retain moisture, and prune only dead or damaged branches.
- 7
Harvest or pruning
Prune in late winter before new growth starts to maintain the tree's shape.
- 8
Common mistakes
Planting too deep, overwatering, using poor-quality soil, and not providing enough space for root growth.
VIEdible & utility
Edible & utility
Edible parts:Seed
Edible uses: Coffee
Other uses:AdhesiveWeaving materialCraftingFire starterTanninLumber
Contextrange · companions · related
VIIDistribuție
1 native · 0 introduced
Distribuție
1 native · 0 introducedDistribution across0 continents· 1 native
Broader regions
native:California
IXSpecimen gallery
1 image
Specimen gallery
1 imageXSee also
8 related
See also
8 relatedPlants you might compare or use together — scored by shared family (Fagaceae), common use cases, and growing requirements.
same family · Fagaceae
Botanical relatives — often share phytochemistry + growing needs.
shared use cases
Different families, similar therapeutic role — good for comparing.
XI
Explore further
Companion planting
Compare with similar plants
Growing zone
XII
About this entry
- Last updated
- Citation
- How to cite this entry · Submit a correction
Back to the cataloguePlant id · 9b7be198-013f-4568-93d4-792a39d78d87
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