Convolvulus arvensis.

Botanical name: 

Convolvulus arvensis Linn. Convolvulaceae. Field Bindweed.

Old World tropics, middle Asia and naturalized in America from Europe. This plant gives its flavor to the liquor called noyeau, imported from Martinique, according to Lindley. It reached Philadelphia in 1876 in the packing of exhibits at the Centennial.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.