Quercus austrina

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Quercus austrina
Scientific classification edit
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section: Quercus sect. Quercus
Q. austrina
Binomial name
Quercus austrina
Quercus austrina distribution map.png
Natural range for Quercus austrina
  • Quercus durandii var. austrina (Small) E.J.Palmer

Quercus austrina, the bastard white oak[3] or bluff oak, is an oak species that is endemic to the southeastern United States from Mississippi to the Carolinas, with a few isolated populations in Arkansas.[4][5]

Quercus austrina can grow to a height of 45 to 60 feet (13.5-18.0 meters) with a spread of 35 to 50 feet (10.5-15.0 meters). Leaves are narrow, with shallow rounded lobes. It tends to grow in wet habitats, such as on river bluffs, river bottoms, and flatwoods, and generally over basic substrates, such as mafic rocks, shells, or calcareous sediment.[4][6]

Quercus austrina specimens have often been misidentified as either Q. sinuata or Q. nigra.[4]


  1. ^ "Quercus chrysolepis". iucnredlist.org. iucnredlist. 2017. Retrieved 21 November 2017. data
  2. ^ "Quercus austrina Small". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew – via The Plant List.
  3. ^ "Quercus austrina". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 30 July 2015.
  4. ^ a b c Nixon, Kevin C. (1997). "Quercus austrina". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 3. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  5. ^ "Quercus austrina". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  6. ^ Flora of the Southern and Mid-Atlantic States by Alan S. Weakley