Vitis rupestris
Encyclopedia
Vitis rupestris is a kind of grape
Grape
A grape is a non-climacteric fruit, specifically a berry, that grows on the perennial and deciduous woody vines of the genus Vitis. Grapes can be eaten raw or they can be used for making jam, juice, jelly, vinegar, wine, grape seed extracts, raisins, molasses and grape seed oil. Grapes are also...

 native to the Southern and Western United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 that is known by many common names including July, sand, sugar, beach, bush, currant, ingar, rock, and mountain grape. It is used for breeding several French-American hybrids
Hybrid grapes
Hybrid grapes are grape varieties that are the product of a crossing of two or more Vitis species. This is in contrast to crossings between grape varieties of the same species, typically Vitis vinifera, the European grapevine. Hybrid grapes are also referred to as inter-specific crossings...

as well as many root stocks. Rupestris St. George has been widely used in breeding and as a root stock and is perhaps the best known.

Vitis rupestris is a self-supporting bushy plant that does not grow in the shade, and was once found in well-drained prairie draws that collect water. Grazing has forced it into less grazed creek beds.

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