Morus rubra
Recognized by the combination of alternate, toothed and often lobed leaves that are rough to the touch above, and the elongated blackberry-like fruit, typically 3 cm long or more.
It was used by indigenous peoples for fiber (made by pounding bark stripped from saplings) to be used for weaving and rope making. The wood is decay-resistant and has been used for fence posts and barrels. The fruit is red at first, turning black as it ripens and is considered superior to the white mulberry in taste (which has been described as overly sweet and insipid). Wildlife also relish the fruit, as do humans, who use them in jams, jellies, and pies.