Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Quercus michauxii (Swamp chestnut oak)
Vick, Albert F. W.

Quercus michauxii Nutt.


Swamp chestnut oak, Basket oak, Cow oak

Fagaceae (Beech Family)



A 60-100 ft. oak with a tight, narrow crown very high on the massive trunk. Bark is light gray. The shiny, oval, unlobed leaves have large, rounded teeth and turn yellow to vibrant red in the fall. Large tree with compact, rounded crown and chestnutlike foliage.

GROWTH FORM: large tree growing to 48 - 100 feet (15 - 30.5 m), occasionally to 155 feet (47.2 m), with a compact rounded crown and chestnut like foliage, often with a limbless trunk to 40 feet (12.2 m). BARK: light gray, rough, flaky ridges. TWIGS and BUDS: juvenile growth is green, progressing to brown during the first winter and turning gray during second year; ovoid, reddish-brown bud, apex may be blunt or pointed, sparsely pubescent scales. LEAVES: short petiole 1⁄4 - 3⁄4 inch (6 - 19 mm) long; obovate leaves widest beyond the middle, 2 3⁄4 - 11 inches (70 - 279 mm) long, 2 - 7 inches (51 - 178 mm) wide, wavy margin with 9 - 14 pair of rounded teeth, base acuminate, apex broadly rounded with an abruptly pointed tip; shiny dark green above, grayish-green with dense pubescence (felty to the touch) below.

Named for French botanist, Frances A. Michaux, who wrote a three volume treatise on the trees of eastern North America. Called Basket Oak because baskets were woven from fibers and splints obtained by splitting the wood. These strong containers were used to carry cotton from the fields. The sweetish acorns can be eaten raw, without boiling. Cows consume the acorns, hence the name Cow Oak. Swamp chestnut oak is considered an early succession species with mature trees retarding growth of understory vegetation due to an allelopathic effect.

Image Gallery:

2 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Obovate
Leaf Venation: Pinnate
Leaf Margin: Dentate
Breeding System: Flowers Unisexual , Monoecious
Inflorescence: Catkin
Fruit Type: Nut
Size Notes: Large tree growing to 48 - 100 feet (15 - 30.5 m), occasionally to 155 feet (47.2 m).
Leaf: Leaves shiny dark green above, grayish-green with dense pubescence (felty to the touch) below.
Autumn Foliage: yes
Fruit: Acorns annual; 1 - 3 on peduncle 1⁄2 - 1 1⁄4 inches (13 - 32 mm) long; deep, bowl-shaped cup with brown pubescent scales, enclosing 1⁄2 of nut; light to dark brown, ovoid nut, 1 - 1 3⁄8 inches (25 - 35 mm) long.
Size Class: 72-100 ft. , More than 100 ft.

Bloom Information

Bloom Color: Yellow
Bloom Time: Mar , Apr , May

Distribution

USA: AL , AR , DE , FL , GA , IL , IN , KY , LA , MD , MS , MO , NJ , NC , OK , SC , TN , TX , VA
Native Distribution: Illinois east to New Jersey, south to Florida, west to Texas, and north to Missouri.
Native Habitat: Occurs on a variety of moist soils and well- drained alluvial floodplains in the central and southern forest regions. Bottomland forests; stream banks; calcareous swamps
USDA Native Status: L48(N)

Growing Conditions

Water Use: Medium
Light Requirement: Part Shade
Soil Moisture: Moist
CaCO3 Tolerance: None
Soil Description: Deep, rich soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Acid-based.
Conditions Comments: Tolerates compaction better than most oaks. Long-lived and slow-growing. Adaptable. One of the best oaks for fall color. Drought tolerant.

Benefit

Use Ornamental: Shade tree, Attractive, Fall conspicuous
Use Wildlife: Fruit-birds, Cover, Nesting site, Substrate-insectivorous birds.
Use Food: The acorns are food for humans, cattle, deer, and small mammals. The nuts are sweet enough to eat raw without boiling.
Interesting Foliage: yes
Attracts: Birds , Butterflies
Larval Host: Horaces Duskywing, Northern hairstreak, White M hairstreak.

Butterflies and Moths of North America (BAMONA)

Quercus michauxii is a larval host and/or nectar source for:
White M Hairstreak
(Parrhasius m-album)

Larval Host
Learn more at BAMONA

Last Update: 2011-09-27