NOTES: Long-lived, high-climbing (up to 50 feet), woody vine capable of reaching into the upper canopy of the tallest trees; forked tendrils; acidic/tart-tasting grapes become sweet and edible after exposure to frost. Very similar to Frost Grape, except 1) leaves have two lateral acute lobes, sharper teeth, ciliolate margins, and a wider basal sinus, 2) usually a pair of new leaves covers the vine tip, and 3) black fruit has heavy bloom.