Vitis aestivalis

Vitis aestivalis, the summer grape, or pigeon grape is a species of grape native to eastern North America from southern Ontario east to Maine, west to Oklahoma, and south to Florida and Texas. It is a vigorous vine, growing to 10 m or more high on trees. The leaves are 7–20 cm long, suborbicular, and usually a little broader than long; they are variable in shape, from unlobed to deeply three- or five-lobed, green above, and densely hairy below. The flowers are produced at every third node in a dense panicle 5–15 cm long. The fruit is a small grape 5–14 mm diameter, dark purple or black in colour. It is the official state grape of Missouri. Summer grape prefers a drier upland habitat.

The four varieties are:

• V. a. var. aestivalis
• V. a. var. bicolor Deam (syn. var. argentifolia Fernald; Silverleaf Grape), formerly called Vitis bicolor, but now considered a northern variation of Vitis aestivalis, native range is in the Northeastern United States and parts of Southern Ontario
• V. a. var. lincecumii (Buckley) Munson
• V. a. var. bourquiniana L.H. Bailey, native to the south, sometimes called Vitis bourquiniana, has tomentose undersides to the leaves