Vascular Plants of North Carolina
Account for White Oak - Quercus alba   L.
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Section 6 » Order Fagales » Family Fagaceae
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AuthorL.
DistributionOccurs statewide, and is certainly present in all 100 counties, though of spotty occurrence in the far eastern counties.

The species is the most characteristic species of the Eastern oak-hickory forests in North America, ranging from southern Canada to northern FL, west to the eastern edge of the Great Plains.
AbundanceCommon to abundant essentially everywhere in the state, except generally only infrequent to fairly common in some areas close to the coast, such as on coastal islands (where not common). Perhaps absent in a few far eastern counties except on barrier islands. Ranges in the mountains perhaps to about 5000 feet.
HabitatThis is often the dominant tree species in mesic forest conditions, on gentle slopes and drier flats. It is less numerous in dry sites, such as ridges and sandhills. It is the most common species of the Dry-Mesic Oak-Hickory Forest natural community.
See also Habitat Account for General Oak-Hickory-Maple Forests
PhenologyFlowers in spring, with acorns maturing in the same year, in fall (Sep – Nov).
IdentificationThis is one of the more easily identified oak species, owing to the hand-like leaves, with usually 7-11 long but rounded lobes. It is a large and tall deciduous tree, often to 100’ tall or more. Its bark is fairly distinctive, being pale to medium gray with somewhat loose ends to the narrow vertical plates, at least on larger trees. Over most of the state, it should not be confused with other oaks, but a few rare species such as Swamp White Oak (Q. bicolor), and especially Bluff Oak (Q. austrina), can grow with it in a few places. Check those species accounts for identification.
Taxonomic CommentsNone, though it may or can hybridize with a few other species.

Other Common Name(s)None. However, it should be noted that “White Oak” is a nested name within a few other species, such as Swamp White Oak. Confusion is not likely, as White Oak has never had any other widely used common name.
State RankS5
Global RankG5
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