Plant
Blue Oak
Quercus douglasiiBlue oak is a drought-adapted deciduous tree with pale blue-green leaves and a broad, often irregular crown. Its shallow-lobed leaves and light bark give dry foothill woodlands a muted silvery cast.
Oak WoodlandDrought AdaptedDeciduous Tree
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyPhotosynthetic; extensive roots capture seasonal soil moisture and mineral nutrients
Predators
- Deer
- Woodpeckers
- Wood-boring beetles
ThreatsPoor regeneration, land conversion, severe drought, altered fire, and browsing of seedlings
HabitatsDry foothills, open oak woodland, savanna, rocky slopes, and Mediterranean-climate valleys
Life spanLong-lived; mature trees commonly persist for a century or more
Classification
- FamilyFagaceae
- SpeciesQuercus douglasii
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Avoid compacting soil, climbing limbs, or disturbing seedlings beneath mature trees.
Responsible observation
- Identify: Look for blue-green leaves with shallow rounded lobes.
- Observe: Scan mature crowns and cavities for woodland wildlife.
- Protect: Remain on durable ground around exposed roots and seedlings.
Help improve the field guideSomething wrong?
Checking your Fauna account…Report a name, category, or profile issue for review.