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 palmata Vahl, Symbol. Bot. 3: 42. 1794.
High-climbing, glabrous or nearly so throughout, or with slight pubescence on the veins of the lower surfaces of the leaves; twigs bright red; bark separating in large flakes; pith interrupted, the diaphragms thick; tendrils intermittent, forked. Leaves dull, darker green than in V. vulpina, deeply 3-5-lobed, the sinuses rounded, the lobes long-acuminate; stipules 1 1/2"-2" long; inflorescence loose; berries black, 4"-5" in diameter, without bloom; seeds 1 or 2, about 3" long; raphe indistinct.
Vitis cordifolia Michx. Fl. Bor. Am. 2: 231. 1803. Vitis virginiana Munson, Gard. & For. 3: 474.
1890. Not Lam. 1808. Vitis Bailey ana Munson. Vit. Bail. 1893.
High-climbing, the twigs glabrous or slightly pubescent, terete or indistinctly angled; pith interrupted by thick diaphragms; internodes long; bark loose; tendrils intermittent; stem sometimes 1° in diameter or more. Leaves 3'-4' wide, glabrous, or sparingly pubescent on the veins beneath, thin, sharply and coarsely dentate with very acute teeth, sometimes slightly 3-lobed, mostly long-acuminate at the apex; tendrils forked, intermittent; stipules about 2" long; inflorescence loose or compact; berries black, shining, about 3" in diameter, ripening after frost; seeds 1 or 2, about 2" long; raphe narrow.
V. rupestris Scheele, Linnaea 21: 591. 1848.
Low, bushy or sometimes climbing to a height of several feet, glabrous or somewhat floccose-pubescent on the younger parts; pith interrupted; bark loose; tendrils forked, intermittent or often wanting. Leaves smaller than in any of the preceding species, pale green, shining, sharply dentate with coarse teeth, or sometimes incised, abruptly pointed, rarely slightly 3-lobed, the sides often folded together; stipules 2"-3" long; inflorescence compact; berries black, with a bloom, 3"-4" in diameter, sweet, 2-4-seeded; seeds about 2" long; raphe very slender.
In various situations, Pennsylvania to the District of Columbia, Missouri, Tennessee and Texas. April-June. Fruit ripe in August.