The willow oak tree (Quercus phellos) belongs to the red oak group. It’s native to the eastern U.S. from southern New York to Florida and found as far west as Oklahoma and Texas. Quercus phellos can withstand both sun and shade and grows rapidly, making the willow oak tree popular for horticultural plantings in urban areas, subjecting the tree to the perils of urban tree stress.
- Alternate Common Name: None
- Average Height: The willow oak tree is a medium sized tree, growing 80 feet tall.
- Average Width: No data
- Leaf Description: Quercus phellos leaves are 2-5 inches long and linear in shape, with a smooth margin and a bristle tip.
- Bark Description: Young bark is smooth, gray and tight; mature bark becomes darker and forms irregular rough ridges and furrows.
- Twig Description: Willow oak twigs are slender, hairless and olive-brown in color. Buds are very small, reddish-brown and sharp.
- Flowering: Male flowers are yellow green catkins; female flowers are borne on spikes.
- Needle or Broadleaf: Broadleafed
- Comments: Despite being massively planted in the U.S. around malls, along roads, etc., the tree tends to grow larger than planned, resulting in cracked sidewalks from roots.