Quercus phellos

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:FAGACEAE
Species:Quercus phellos L.
Common Name:Willow Oak
Habitat:**
Associated Ecological Communities:**
Growth Habit:Tree
Duration:Perennial
Category:Vascular
USDA Symbol:QUPH
Plant Notes:Willow Oak is a native deciduous tree in the Beech family (Fagaceae). It is native to most of Alabama. Willow Oak occurs on floodplains, along rivers and streams, and in poorly drained uplands. It is a large tree reaching heights of 100-120 feet. The bark is thin, gray, and irregularly furrowed. Leaves are alternate with very short petioles, linear to narrowly elliptic in outline, with entire margins. The leaves are widest near the middle with almost parallel sides and end in a bristle tip. The midrib is the only prominent vein. Leaves are dark green and shiny above and pale green below. Both sides of the leaf are glabrous, or leaves may be pubescent along the midrib below. Leaves turn yellowish-brown before falling. Male flowers are produced in drooping yellow-green catkins. The female flowers are solitary and sessile. The fruit is a nut that requires two years to mature. The cup of the acorn is very flat and shallow, covering ¼ of the acorn. Willow Oak is a popular shade and street tree available from many nurseries. It prefers a medium to wet clayey soil and full sun, and can tolerate some flooding especially when it is dormant. Willow Oak is fast growing and tolerant of pollution, making it a popular species for planting in urban settings. Some consider it to be over utilized.--A. Diamond
Taxonomic Notes:**
Status:Native, FACW- (NWI)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyFAGACEAE - Beech family
Genus Quercus
Species Quercus phellos L. - Willow Oak

Citation

Citation Quercus phellos Linnaeus, Sp. Pl. 2: 994. 1753.
Basionym: **
Type: USA: VIRGINIA: Without data, Clayton 780 ["906"] (lectotype: BM). Lectotypified by J.L. Reveal et al., Huntia 7: 233. 1987.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Quercus phellos var. sylvatica Quercus phellos Linnaeus, var. sylvatica Michaux, Hist. Chênes Amér. pl. 12. 1801. "New Jersey to Florida".
Quercus phellos var. viridis Quercus phellos Linnaeus, var. viridis Aiton, Hort. Kew. 3: 354. 1789, nom. inadmiss.Quercus phellos Linnaeus 1753. 

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Autauga, Baldwin, Barbour, Bibb, Blount, Bullock, Butler, Calhoun, Cherokee, Choctaw, Cleburne, Coffee, Colbert, Covington, Cullman, Dale, Dallas, DeKalb, Elmore, Escambia, Etowah, Fayette, Greene, Hale, Jackson, Jefferson, Lauderdale, Lawrence, Lee, Limestone, Lowndes, Macon, Marengo, Marshall, Mobile, Monroe, Montgomery, Morgan, Pickens, Pike, Randolph, Shelby, St. Clair, Sumter, Talladega, Tuscaloosa, Winston

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: ALNHS, AUA, JSU, SAMF, TROY, UNA, USAM, UWAL

Range of years during which specimens were collected: 1894 - 1998

Barcode / Accession No.
County
Coll. Date
Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
TROY000045706 Autauga 13 Oct 2016 Parker, Matthew R.
171		 TROY
Quercus phellos Linnaeus
UWAL0039364 Autauga 13 Oct 2016 Parker, Matthew R.
171		 UWAL
Quercus phellos L.
UWAL0043566 Baldwin 04 Jun 2000 Larsen, Harry S.
346		 UWAL
Quercus phellos L.
UWAL0043567 Baldwin 16 Jun 2001 Larsen, Harry S.
689		 UWAL
Quercus phellos L.
AUA_ACC_36390 Barbour 5 Oct 1972 BOWERS, JOHN R.
117		 AUA
QUERCUS PHELLOS L.
UNA00045721 Barbour 09 May 1998 MacDonald, John R.
11149		 UNA
Quercus phellos L.
JSU124098 Bibb 25 Sep 1982 Whetstone, R. David
12589		 JSU
Quercus phellos Linnaeus
UNA00032631 Bibb 15 Oct 1982 Burckhalter, Robert
67		 UNA
Quercus phellos L.
UWAL0035830 Blount 30 Jun 2014 Anderson, Kelly
593		 UWAL
Quercus phellos L.
UNA00060851 Bullock 11 Sep 2003 Diamond, Alvin R.
14140		 UNA
Quercus phellos L.
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