Quercus arkansana

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Arkansas oak
Quercus arkansana.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section: Quercus sect. Lobatae
Species:
Q. arkansana
Binomial name
Quercus arkansana
Quercus arkansana range map 1.png
Natural range of Quercus arkansana
Synonyms [2]
  • Quercus arkansana var. caput-rivuli(Ashe) Ashe
  • Quercus caput-rivuliAshe

Quercus arkansana, the Arkansas oak, is a species of oak tree. It is native to the southeastern United States (eastern Texas, southern Arkansas, Louisiana, Mississippi, Alabama, Georgia, and the Florida Panhandle). [3] It is threatened by use of its habitat for pine plantations, clearing of land, and diebacks that may be caused by drought.

Contents

Description

Quercus arkansana is a deciduous tree growing up to 15 meters (49 feet) tall. The bark is black. The leaves are sometimes unlobed and sometimes with 2 or 3 shallow lobes. [4]

Habitat

Quercus arkansana is shade-loving tree that grows in the understories of mesic pine forests and southern hardwood stands, and it is frequently reported from sandhills, the upper portions of ravines, steepheads, and above the heads of small streams. [1] It is rarely a dominant component of the vegetation, except for a few places in Arkansas and Florida where it is found in large stands. It grows alongside Pinus taeda , P. echinata and other pines, as well as other oaks such as Quercus nigra , Q. pagoda , Q. margarettae , and Q. hemisphaerica . It grows among various other hardwoods including Nyssa sylvatica , Liquidambar styraciflua , Vaccinium arboreum , Sassafras albidum , Magnolia grandiflora , and Diospyros virginiana . It has been observed to form hybrids between Q. arkansana and Q. nigra in Georgia, and introgression from Q. falcata has been observed in Texas. [1]

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References

  1. 1 2 3 Jerome, D.; Wenzell, K.; Kenny, L. (2017). "Quercus arkansana". IUCN Red List of Threatened Species . 2017: e.T30953A88108282. doi: 10.2305/IUCN.UK.2017-2.RLTS.T30953A88108282.en . Retrieved 15 November 2021.
  2. "Quercus arkansana Sarg.". World Checklist of Selected Plant Families . Royal Botanic Gardens, Kew via The Plant List. Note that this website has been superseded by World Flora Online
  3. "Quercus arkansana". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  4. Nixon, Kevin C. (1997). "Quercus arkansana". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 3. New York and Oxford: Oxford University Press via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.