This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Vitis aestivalis Michx. Fl. Bor. Am. 2: 230. 1803.
High climbing, branches terete, the twigs and petioles pubescent; bark loose and shreddy; pith interrupted at the nodes. Leaves as large as those of V. Labrusca, dentate, or 3-5-lobed, floccose-woolly with whitish or rusty pubescence, especially when young, sometimes becoming nearly glabrous when mature; tendrils and flower-clusters intermittent (wanting opposite each third leaf); inflorescence generally long and loose; berries numerous, about 5" in diameter, black, with a bloom, acid, but edible; seeds 2-3, about 3" long; raphe narrow.
Vitis aestivalis var. cancscens Engelm. Am.
Nat. 2: 321, name only. 1868. Vitis aestivalis var. cinerea Engelm.; A.
Gray, Man. Ed. 5, 679. 1867. V. cinerea Engelm. Bushb. Cat. Ed. 3, 17.
Climbing, branches angled, young shoots and petioles mostly floccose-pubescent; bark loose; pith interrupted; tendrils intermittent. Leaves dentate, or somewhat 3-lobed, often longer than wide, rather densely floccose-pubescent with whitish, persistent hairs on the lower surface, especially along the veins, sparingly so on the upper; inflorescence loose; berries black, without bloom, 3" - 4" in diameter, pleasantly acid, 1-2-seeded; seeds about 2" long, the raphe narrow.
Illinois to Nebraska, Kansas, Louisiana and Texas. May-June. Downy or ashy grape.
High-climbing or long-trailing, the tendrils intermittent, the branches terete. Twigs and leaves glabrous, or somewhat pubescent, bluish-glaucous, especially the lower surfaces of the leaves, the bloom sometimes disappearing by the time the fruit ripens; internodes long, the pith interrupted at the nodes; leaves usually 3-lobed, cordate at the base, sometimes 12' long, the sinuses rounded, the lobes acute or acuminate; inflorescence compact; berries bluish-black with a bloom, sour, about 4" in diameter; seeds about 2" long, raphe narrow.
New Hampshire to Michigan, North Carolina, Tennessee and Missouri. May-June.
Vitis vulpina L. Sp. Pl. 203. 1753. Vitis riparia Michx. Fl. Bor. Am. 2: 231. 1803. Vitis cordifolia var. riparia A. Gray, Man. Ed. 5, 113. 1867.
Climbing or trailing, glabrous throughout, or more or less pubescent on the veins of the lower surfaces of the leaves; branches rounded or slightly angled, greenish; pith interrupted, the diaphragm thin; tendrils intermittent. Leaves thin, shining, almost all sharply 3-7-lobed, the sinuses angular, the lobes acute or acuminate, the terminal one commonly long; stipules 2"-3" long, often persistent until the fruit is formed; inflorescence compact or becoming loose; berries bluish-black, with a bloom, 4"-5" in diameter, rather sweet; seeds 2-4, 2" long, the raphe narrow and inconspicuous.
Along rocky river-banks. New Brunswick to Manitoba, south to Maryland, West Virginia, Arkansas and Colorado. May-June. Fruit beginning to ripen in July or earlier, sometimes continuing until October. Winter-, frost-, bull- or Aroyo-grape.