blackjack oak (Quercus marilandica)
Family: Fagaceae
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| Form:
This is a small tree reaching 20-30 ft in height. The stem has poor form often developing a shrubby appearance. |
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Shape: alternate Margin: broadly spatulate to obovate or shallowly 3-lobed; bell-shaped base Texture: entire Variation: leathery; tomentose below |
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| Bark:
It has very thick, rough black bark with deep furrows that are divided into angular blocks. |
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| Twigs and Buds:
The somewhat pubescent twigs are stout. The buds are angled, long, and reddish-brown in color. |
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| Flowers and Fruit:
The acorn is long and has a cap that covers most of the nut. |
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| Distinguishing Characteristics:
Broadly obovate leaves are sometimes shallowly 3-lobed at the apex. |
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| Range:
Blackjack oak can be found growing in New Jersey and Pennsylvania along the coastal plain south into Florida, west to central Texas and north into Iowa. It is not abundant in the northern states. |
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| Silvics:
It is intolerant of shade and grows on dry upland sites. |
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