Muller Oak

Quercus cornelius-mulleri

Muller Oak

Robb Hannawacker, while working for Joshua Tree National Park

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fagaceae
Genus:
Quercus
Species:
Quercus cornelius-mulleri

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
8-12 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
feb, mar, apr
Bloom Colors:
Yellow, Green, Brown

Native Range

United States: California

Keystone Species Ranking

Caterpillar Keystone:
★☆☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Native to arid regions; drought-tolerant

Germination Information

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 90 days.

Source: OpenAI GPT-4o