interior live oak (Quercus wislizeni)

Native: California

Tree Characteristics

  • Shape: Oval, Rounded, Umbrella or Vase
  • Foilage: Evergreen, Lanceolate to Elliptic and Hollylike, Glossy Medium to Dark Green
  • Height: 30 - 70 feet.
  • Width: 40 - 80 feet.
  • Flowers: Inconspicuous. Flowers in Spring.
  • Fruit: Brown Acorn, Medium (0.50 - 1.50 inches), fruiting in Fall or Winter.
  • Bark: Dark Brown, Furrowed, Ridged or Scaly.
  • Shading Capacity: Dense in Leaf.
  • Litter Issue: Dry Fruit.

Tree Site Conditions & Constraints

  • Zones: Sunset 7 - 9, 14 - 16 and 18 – 21, USDA Hardiness 8 - 10.
  • Exposure: Full Sun to Partial Shade.

Pests & Disease Information

  • Susceptible: Caterpillars, Coddling Moths, Insect Galls and White Fly, Crown Rot, Mistletoe, Powdery Mildew and Root Rot.

Health, Safety & Environmental Concerns

  • Branch Strength: Strong.
  • Root Damage Potential: Moderate.
  • Health Hazard: Allergy and Poisonous
  • Biogenic Emissions: High
  • Attracts: Birds and Squirrels

Source:

SelecTree. "Quercus wislizeni Tree Record." 1995-2018. Mar 1, 2018.
​< https://selectree.calpoly.edu/tree-detail/quercus-wislizeni >

 interior live oak