Other very similar, locally-distributed edible species include the Texas mulberry (Morus microphylla), and the purple mulberry (Morus nigra). Sassafras also has lobed and unlobed leaves, but they’re fragrant and untoothed. There are no poisonous look-alikes.
Raspberry and blackberry fruits superficially resemble mulberries, but the fruits of these unrelated thorny canes grow upright, on receptacles, with no fruit stalks.
Ripe mulberries come in different colors: red, white, pink, and purple. These colors are attributed to two different species and their hybrids.