Red oaks (Texas, Shumard, blackjack, water) are extremely susceptible to infection through insect activity. Red oaks are often the primary mode by which oak wilt gains a foothold in a new area. The oak wilt fungus thrives in red oaks and creates visible fungal mats underneath the bark. Blackjack oak prefers slightly to very acidic sand, sandy loam and clay soils in Central and East Texas. In the western region of its boundaries, it may grow on gravelly clay soils. It is commonly associated with mesquite and juniper or other species of oak trees. Blackjack definition is - a card game the object of which is to be dealt cards having a higher count than those of the dealer up to but not exceeding 21 —called also twenty-one, vingt-et-un. How to use blackjack.

Blackjack oak
Dormant blackjack in the Cross Timbers of Lincoln County, Oklahoma
Least Concern (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:
Binomial name
*Quercus marilandica* Muenchh.^[2]
Generalized natural range of Quercus marilandica
Synonyms^[3]^[4]
Quercus cuneataWangenh. Quercus dilatataRaf. Quercus ferrugineaF.Michx. Quercus neoasheiBush Quercus nobilisMast.

Quercus marilandica, the blackjack oak, is a small oak, one of the red oak groupQuercus sect. Lobatae. It is native to the eastern and central United States, from Long Island to Florida, west as far as Texas, Oklahoma, and Nebraska. There are reports of a few isolated populations in southern Michigan, but these appear to represent introductions.^[5]^[6]

Blackjack oak leaves

Blackjack oak stump, approx. 75 years old

Quercus marilandica is a small deciduoustree growing to 15 meters (49 feet) tall, with bark cracked into rectangular black plates with narrow orange fissures. The leaves are 7–20 cm (3–8 in) long and broad, and typically flare from a tapered base to a broad three-lobed bell shape with only shallow indentations. They are dark green and glossy above, pubescent underneath, and often remain attached to the twigs through the winter after turning colors from red to brown in the fall. The acorn is small, 12–20 mm (0.47–0.79 in) long and 10–18 mm (0.39–0.71 in) broad; like other red oaks, it takes 18 months to mature.^[7]

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Habitat and distribution[edit]

The blackjack oak grows in poor, thin, dry, rocky or sandy soils where few other woody plants can thrive, usually on low ground, from sea level up to approximately 2,800 feet (850 meters) in altitude. Some say that it does not have the beautiful form of many oaks, but is nonetheless a valuable tree for growing in problem sites.^[8] Some say that the tree is 'tough but ugly', but also underappreciated.^[9]^[10] At times the tree has even been actively eradicated to provide more room for trees deemed to be more commercially valuable.^[11]

It is sometimes an understory tree in pine stands on sandy knolls in the southeastern US. Along the coastal plain of New Jersey the probability of finding this species is increased in relatively sunny, open areas such as those near coastal salt marshes. It often occurs near scarlet and post oaks as well as pitch pine; understory companions include winged sumac, bracken, sweetfern, and bayberry, and can be found as far north as parts of Ohio^[12] and New York.

A variety, Quercus marilandica Münchhausen var. asheiSudworth,^[7] grows in the western portions of its range – northern Texas, Oklahoma, and into southern Kansas. In this area, blackjack and post oak form a semi-savanna area composed of forested strips intermixed with prairie grass glades along the eastern edge of the southern Great Plains. This semi-savanna is known as the Cross Timbers.^[13]^[14]^[15] Scrub forms of Q. marilandica dominate on many chert glades along with Q.stellata in Arkansas's Ozark plateau.^[16]

Blackjack oak sometimes hybridizes with bear oak (Quercus ilicifolia), forming a hybrid known as Q. × brittonii.^[17]

Blackjacks in the Cross Timbers can grow from 50 to 60 feet (15 to 18 m) high with a trunk diameter of 16 inches (41 cm), but seldom reach more than 40 feet (12 m). The leaves are from 4 to 10 inches (10 to 25 cm) in length and about the same width. Blackjack acorns provide food for both whitetail deer and wild turkey. Blackjacks may, however, cause tannic acid poisoning in cattle.

Uses[edit]

The wood is very dense and produces a hot flame when burned, which functions as an excellent source of heat for barbecues and wood-burning stoves. However, the wood is not desirable for wood fireplaces because the heat causes popping, thereby increasing the risk of house fires.^[18] Top 100 online casino sites.

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Traditionally blackjack wood is used as both a fuel and smoke wood for barbecue in Oklahoma.

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What Does Blackjack Oak Look Like

References[edit]

^Wenzell, K.; Kenny, L. (2015). 'Quercus marilandica'. IUCN Red List of Threatened Species. IUCN. 2015. Retrieved 18 November 2017.old-form url
^Münchhausen, Otto von (1770). 'Verzeichniß der Bäume und Stauden, welche in Deutschland fortkommen'. Der Hausvater. 5. Hannover: Försters und Sohns Erben. pp. 253: diagnosis in Latin, description in German in Teutonic script.
^'Quercus marilandica (L.) Münchh'. World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew. Retrieved 31 October 2017 – via The Plant List.
^'Quercus marilandica Münchh'. Tropicos. Missouri Botanical Garden. Retrieved 31 October 2017.
^'Quercus marilandica Range Map'(PDF). United States Geological Survey. Archived from the original(PDF) on 16 July 2011. Retrieved 2008-03-05.
^'Quercus marilandica'. County-level d

What Is A Blackjack Oak