#107 most planted
Quercus
Oak
19,022
trees mapped
0.18%
of all named trees
32
cities
6.9 in
median trunk (18 cm, 14,292 measured)
18 yr
median age (28% have a planting date)
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An oak is a hardwood tree or shrub in the genus Quercus, widely distributed in the Northern Hemisphere. They are keystone species, supporting a large number of insects and fungi. Oak timber is strong and used in construction, furniture, and wine barrels.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 4,1840.37%—4.7 in
- 2,5351.7%13 yr12 in
- 1,5970.34%29 yr4.5 in
- 1,5860.23%—5.5 in
- 1,5400.54%—9.8 in
- 1,2530.64%9.9 yr6.0 in
- 9020.21%45 yr12 in
- 8611.0%—9.2 in
- 8250.11%—17 in
- 7573.2%—8.7 in
- 6710.29%—6.9 in
- 4040.54%—4.7 in
- 3210.20%8.0 yr3.9 in
- 2450.50%15 yr29 in
- 2070.06%6.2 yr4.3 in
- 1780.24%—9.8 in
- 1680.14%8.4 yr40 in
- 1540.21%—17 in
- 1450.04%—3.5 in
- 1380.07%—11 in
- 1310.04%—3.0 in
- 480.11%16 yr3.0 in
- 460.01%9.4 yr3.1 in
- 340.03%0.7 yr3.0 in
- 270.08%—2.8 in
- 230.05%—2.0 in
- 200.01%—5.9 in
- 160.10%14 yr3.9 in
- 20.00%—4.9 in
- 20.02%——
- 10.00%—18 in
- 10.00%—1.2 in
Traits
- Mature height
- 20–70 ft
- Canopy spread
- 15–50 ft
- Growth rate
- Fast
- Wildlife value
- High
- Blooms
- Mar, Apr, May
Trunk diameters across every city: median 6.9 in, mean 11 in, 90th percentile 24 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.
Tropical & Subtropical Moist Broadleaf Forests
- Nansei Islands subtropical evergreen forests
- South Taiwan monsoon rain forests
- Taiwan subtropical evergreen forests
Temperate Broadleaf & Mixed Forests
- Eastern Himalayan broadleaf forests
- Nihonkai evergreen forests
- Southern Korea evergreen forests
Temperate Conifer Forests
- Eastern Himalayan subalpine conifer forests
Other Quercus in the catalogue
74 of the top 2,000 species are in this genus.
