#1065 most planted

Quercus tomentella

Quercus tomentella · also Island oak, Island live oak, Channel island oak

BroadleafEvergreen

146

trees mapped

0.00%

of all named trees

cities

3.0 in

median trunk (8 cm, 107 measured)

1.5 yr

median age (77% have a planting date)

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The Island Oak is a medium-sized evergreen tree with a rounded, dark green canopy and leathery leaves. Native to the Channel Islands of California and Guadalupe Island, it is an endangered species threatened by overgrazing. Despite its rarity, it is widely grown horticulturally and forms hybrids with other oaks.

Where it grows

Trees in each city's inventory, with the share of that city's named trees this species accounts for.

San Francisco · United States
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1450.11%1.5 yr3.0 in
Los Angeles · United States
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10.00%——

Traits

Form: Broadleaf
Foliage: Evergreen
Mature height: 20–50 ft
Canopy spread: 25–40 ft
Water needs: Low
Drought tolerance: High
Wildlife value: High
Blooms: Mar, Apr, May, Jun, Jul, Aug

Trunk diameters across every city: median 3.0 in, mean 3.5 in, 90th percentile 3.0 in. Measured at breast height, as published by each inventory.

Native range

Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.

Deserts & Xeric Shrublands

Baja California desert

Other Quercus in the catalogue

74 of the top 2,000 species are in this genus.