Quercus arkansana

Arkansas oak
Conservation status
	; Vulnerable (IUCN 3.1)[1]
Scientific classification
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; Sarg.
	Natural range of Quercus arkansana
Synonyms[2]
	Quercus arkansana var. caput-rivuli (Ashe) Ashe; Quercus caput-rivuli Ashe;

Quercus arkansana, the Arkansas oak, is a species of tree in the beech family. 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.

Description

Quercus arkansana is a deciduous tree up to 15 m (49 ft) 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 sized stands. It grows alongside Pinus taeda, Pinus echinata, other pines, and other oaks such as Quercus nigra, Quercus pagoda, Quercus margarettae, and Quercus 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 Quercus arkansana and Quercus nigra in Georgia, and introgression from Quercus falcata has been observed in Texas.[1]

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References

Wenzell, K.; Kenny, L. (2015). "Quercus arkansana". IUCN Red List of Threatened Species. 2015: e.T30953A2798819. doi:10.2305/IUCN.UK.2015-4.RLTS.T30953A2798819.en.
"Quercus arkansana Sarg.". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew – via The Plant List.
"Quercus arkansana". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
Nixon, Kevin C. (1997). "Quercus arkansana". 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.

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[iucn-1] Wenzell, K.; Kenny, L. (2015). "Quercus arkansana". IUCN Red List of Threatened Species. 2015: e.T30953A2798819. doi:10.2305/IUCN.UK.2015-4.RLTS.T30953A2798819.en.

[2] "Quercus arkansana Sarg.". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew – via The Plant List.

[3] "Quercus arkansana". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.

[fna-4] Nixon, Kevin C. (1997). "Quercus arkansana". 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.