BugwoodWiki Article

sawtooth oak
Quercus acutissima Carruthers

Overview

Appearance
Quercus acutissima is a large, up to 50 ft. (15.2 m) in height, deciduous tree that has been invading forests in the eastern United States.
Foliage
The leaves are alternate, broadly lance-shaped, 4-7.5 in. (10.2-19 cm) long, up to 2.5 in. (6.4 cm) wide with bristly teeth along the margin.
Flowers
Flowers bloom in May and are small and inconspicuous.
Fruit
Fruit are large acorns with spreading, curved scales on the involucre. Trees produce large amounts of acorns.
Ecological Threat
Quercus acutissima has been found in recent years to escape plantings and establish in nearby forests, potentially displacing native vegetation. It is native to Asia and has been widely planted in the United States as an ornamental and as food for wildlife. It is no longer recommended for planting in the United States because of its potential impact on native ecosystems.

Resources

Selected Images


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1237024

sawtooth oak
Quercus acutissima
Fruit(s)
Chuck Bargeron
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5408327

sawtooth oak
Quercus acutissima
Foliage
Karan A. Rawlins
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5408328

sawtooth oak
Quercus acutissima
Foliage
Karan A. Rawlins
1237025
1237025

sawtooth oak
Quercus acutissima
Fruit(s)
Chuck Bargeron
1237061
1237061

sawtooth oak
Quercus acutissima
Tree(s)
USDA NRCS Archive
2190002
2190002

sawtooth oak
Quercus acutissima
Flower(s)
Chris Evans
2190003
2190003

sawtooth oak
Quercus acutissima
Flower(s)
Chris Evans
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2308022

sawtooth oak
Quercus acutissima
Bark
David J. Moorhead
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5143012

sawtooth oak
Quercus acutissima
Flower(s)
The Dow Gardens Archive
5308067
5308067

sawtooth oak
Quercus acutissima
Fruit(s)
Steve Hurst
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5474211

sawtooth oak
Quercus acutissima
Foliage
David Stephens
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5474213

sawtooth oak
Quercus acutissima
Fruit(s)
David Stephens

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Hamamelidae
Order: Fagales
Family: Fagaceae
Genus: Quercus

Other System Links

Plants: QUAC80
GRIN: 70535
ITIS: 195162
NPDN Pest: PBWAFCZ
NPDN Host: 35504

Categories

Category: Hardwood Trees