Morus Alba, L.
Probably a native of China, where its leaves have from time immemorial furnished food for silkworms; extensively introduced and naturalized in India and central and southern Europe; introduced likewise into the United States and Canada from Ontario to Florida; occasionally spontaneous near dwellings, old trees sometimes marking the sites of houses that have long since disappeared.
It may be distinguished from M. rubra by its smooth, shining leaves, its whitish or pinkish fruit, and its greater susceptibility to frost.