Quercus phellos
Object Details
- Description
- Willow oak is a popular shade tree in cities due to its ability to withstand adverse growing conditions. It has long, narrow, willow-like leaves.
- This oak is listed as Threatened in Illinois, and Endangered in New York and Pennsylvania.
- Hardiness
- -20 - 30 F
- Bloom Time
- April
- Provenance
- From a cultivated plant not of known wild origin
- Data Source
- Smithsonian Gardens
- Accession Number
- 2011-2855A
- Restrictions & Rights
- Usage conditions apply
- Life Form
- Deciduous tree
- Average Height
- 40-75'
- Bark Characteristics
- Dark gray, furrowed bark.
- Bloom Characteristics
- Yellow-green male and female catkins emerge with leaves.
- Fall Color
- Yellow-brown
- Foliage Characteristics
- Simple, alternate, elongated and slender leaves with entire margins. Light green and shiny above, dull and pale beneath.
- Fruit Characteristics
- Small, round, brown acorns grow singularly or in pairs and have shallow caps. The overlapping scales which make up the cap are hairy and dark red. Introduced trees rarely produce acorns.
- Structure
- Oval, round
- Range
- C and E USA
- Habitat
- floodplains commonly flooded in winter and spring, on ridges and high flats surrounded by swamp or major rivers
- See more items in
- Smithsonian Gardens Tree Collection
- Common Name
- Willow Oak
- Peach Oak
- Group
- [vascular plants]
- Class
- Equisetopsida
- Subclass
- Magnoliidae
- Superorder
- Rosanae
- Order
- Fagales
- Family
- Fagaceae
- Genus
- Quercus
- Species
- phellos
- Topic
- Trees
- Living Collections
- Record ID
- ofeo-sg_2011-2855A
