-A Hybrid -
Quercus x Sterilis (Q. nigra × marilandica) - Trel
Fagaceae (Beech) Family
Barren Oak grows in the following 25 states and provinces: Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, and is commonly known as Dwarf Blackjack Oak, Black Oak, Blackjack Oak, Jack Oak as well as Scrub Oak. The currently accepted scientific name of blackjack oak is Quercus marilandica (Muenchh.)
The Dwarf Blackjack Oak has leaves that are identical to the Blackjack Oak except the leaves are about half the size of Blackjack Oak and the tree is generally no more than 10-15 feet tall.
The Barren Oak has been placed within the subgenus Erythrobalanus, or red (black) oak group . There are no recognized subspecies, varieties, or forms. Blackjack oak hybridizes with the following species : x Q. falcata (southern red oak) x Q. geogiana (Georgia oak): Q. X smallii x Q. ilicifolia (bear oak): Q. X brittonii x Q. imbricaria (shingle oak): Q. X tridentata), Engelm. x Q. incana (bluejack oak): Q. X cravenensis, Little x Q. nigra (water oak): Q. X sterilis x Q. phellos (willow oak): Q. X rudkinii,Britton x Q. rubra (northern red oak) x Q. shumardii (Shumard oak): Q. X hastingsii, Sarg. x Q. velutina (black oak): Q. X bushii Sarg. x Q. laurifolia (laurel oak): Q. X diversiloba Tharp ex A. Camus.
Some of the information provided here is attributed to: Carey, Jennifer H. 1992. Quercus marilandica. In: Fire Effects Information System, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station.