jack oak

noun

An Americanism dating back to 1810–20

THE black jack oak is a tree of sandy and clayey barren lands where few other forest trees thrive.

The shingle oak is known as jack oak in some parts of Illinois.

The wood of blue jack oak is hard, strong, light brown in color, with darker-colored sapwood.

The blue jack oak sometimes attains a height of fifty feet and a diameter of twenty inches; but that is its best.

A vigorous black jack oak, standing in open ground, presents a fine appearance.

April 23, 2024inveterate

[in-vet-er-it ]

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