Grapes of the Labrusca Type
The Vitis Labrusca, indigenous to the eastern United States, is the native species from which the Concord and Catawba types of grapes, including the Niagara, brighton, and numerous other varieties, have been developed. The variety here shown is of mixed heritage, but reveals the preponderant influence of the Labrusca.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 6 Chapter 6