Interior Live Oak

Quercus wislizeni

Native to:
Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fagaceae
Genus:
Quercus
Species:
Quercus wislizeni
USDA Symbol:
QUWI2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
2300 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
mar,apr,may

Wildlife Benefits

Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★★★★☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Acrocercops insulariella, Andromache Underwing (Catocala andromache), Bucculatrix albertiella, Caloptilia agrifoliella, Caloptilia reticulata, Cameraria anomala, Cameraria wislizeniella, Chionodes chrysopyla, Chionodes raspyon, Chionodes trichostola, Coleophora serratella, Coptodisca powellella, Decodes fragariana, Dyseriocrania auricyanea, Epinotia emarginana, Eriocraniella aurosparsella, Eriocraniella xanthocara, Evippe sp., fruit-tree leafroller (Archips argyrospila), habrosana leafroller moth (Pseudexentera habrosana), Pacific tent caterpillar (Malacosoma constricta), Phyllonorycter inusitatella, Phyllonorycter sandraella, Rectiostoma fernaldella, Recurvaria sp., Stigmella variella, Stilbosis dulcedo, Telphusa sedulitella, Tischeria discreta, Trachycera caliginella, Vespina quercivora, Xenolechia querciphaga, Xenolechia staspa, Gold-hunter's hairstreak (Satyrium auretorum)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals, deer
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from the root crown following fire. Well-adapted to California's fire-prone chaparral and foothill woodlands.

Soil Requirements

Soil Type:
well-drained, rocky or sandy loam
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
adapted to dry slopes and foothills

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
30–90 days
Notes:
Acorns should be planted fresh in fall or cold-stratified. Germinates readily with consistent moisture.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are placed in cold moist stratification for 17 to 28 days or soaked in fresh water overnight, cleaned, and then placed in a plastic freezer bag with an equal amount of dry perlite. Keep in refrigerator at 15C for 1 month.

Establishment: Seeds are collected between September 1st and December 15th. Mature acorns are brown. Collect when the base of the acorn turns brown and is easily pulled from the cup. The protocols provide two different pre-treatment methods, one involving cold moist stratification and the other soaking in water and refrigeration.

Source: npn.rngr.net