(Quercus phellos)
The Beech Family (Fagaceae)

Medium to large southern oak with willow-like foliage, light gray bark when young, turning brown with narrow ridges when older; straight trunk with a cone-shaped crown which becomes round at maturity. Narrow leaves are simple and arranged alternately along the twig. Tardily deciduous.


Floodplains, stream-banks and bottomland woods.

Interesting Facts: 

Known for rapid growth and long life. Important species for wildlife food producing abundant acorns almost every year.

Round acorns .5” long; the cup-shaped cap covers 1/3 to 1/4 of the nut.
Male and female flowers on the same tree. Male: slender, yellow-green catkins. Female: tiny, in few flowered clusters at junction of leaf stems.
Wildlife value: 
Acorns a major source of food for game animals such as ducks, squirrels, deer and turkey as well as many non-game animals including blue jays and red-headed woodpeckers. Provides shelter for grackles, flickers, mice and flying squirrels.
Leaf type: 
Wildlife value: 
Tree dimensions: 

Leaf length: 2.50-5.50 inches
Tree height: 60.00-100.00 feet

Where to find Willow Oak on the Louisiana State Arboretum Trails:

TER - Walker Terrace 31.0

Refer to our Live Map to locate this species and its interpretative signage on the trail system.