Sub-category: Grape family
It is a long-stemmed, woody vine growing to 32 m in length, with flaky bark. The leaves are alternate, palmately lobed, 5 to 20 cm long and broad. The fruit is a berry, known as a grape; in the wild species it is 6 mm diameter and ripens dark purple to blackish with a pale wax bloom; in cultivated plants it is usually much larger, up to 3 cm long, and can be green, red, or purple (black).
In Connecticut they are typically found as abandoned remnants of an earlier farm or orchard. Otherwise naturally occurs in humid forests and streamsides.