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The Summer grape (Vitis aestivalis) belongs to Vitaceae (the Grape family). It is a small decidous vine that is distributed from southwestern Canada to central to eastern United States. It grows in upland hardwood forests, forest margins, wastelands, and sand dunes, and grows up to 10 m tall. Most of the leaves are broadly heart-shaped, with unbroken to deeply lobed three to five lobes. The leaves are green with dense wooly hairs on the underside. Around June, the cylindrical inflorescences opposite the leaves on this year's branches produce green to yellowish flowers. It is dioecious. The berries are small (5-14 mm in diameter) and ripen to dark purple or black. Several varieties have been selected, one of which, 'Norton', is believed to be the oldest commercially produced grape variety in the United States.
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