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Vitis aestivalis
 (

Vitis aestivalis, the summer grape, or pigeon grape

(2007). 9780812240030, University of Pennsylvania Press.
is a species of native to eastern from southern east to , west to , and south to and . Biota of North America Program 2014 county distribution map It is a vigorous , growing to 10 m or more high on . The 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 are produced at every third node in a dense 5–15 cm long. The is a small 5–14 mm diameter, dark purple or black in colour.Oklahoma University: Vitis aestivalis It is the official state grape of . 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
  • V. a. var. lincecumii (Buckley) Munson
  • V. a. var. bourquiniana L.H. Bailey, native to the south, sometimes called Vitis bourquiniana, has undersides to the leaves


Cultivation and uses
Several cultivars have been selected, including 'Norton', a cultivar with a substantial V. aestivalis background, is believed to be the oldest American grape cultivar in commercial production.

Inter specific-hybrids made with the species V. aestivalis, such as Norton, have shown several useful traits for commercial production when compared with other North American native grape varieties. These traits include: lower acidity, neutral, "-like" flavour profile, good tannin structure, and excellent disease resistance.

Unlike most other species in genus Vitis, V. aestivalis does not propagate well through dormant cuttings. This has been a limiting factor for its use in commercial viticulture despite the species's promising characteristics. Propagation of V. aestivalis specimens must typically be made through layering or through green cuttings. The species typically does not tolerate highly soils.Appellation America: Norton / Cynthiana

It has been claimed that a variety of V. aestivalis was cultivated by the and used in some of their sacred rituals.

(1992). 9780914875192, Historical Images.


Gallery
File:Vitis aestivalis BotGardBln07122011A.JPG File:Vitis aestivalis (USDA).jpg File:Vitis aestivalis 1120454.jpg


See also


External links

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