Morus, a genus of flowering plants in the family Moraceae, consists of diverse species of deciduous trees commonly known as mulberries, growing wild and under cultivation in many temperate world regions.[1][2][3] Generally, the genus has 64 identified species,[4] three of which are well-known and are ostensibly named for the fruit color of the best-known cultivar: white, red, and black mulberry (Morus albaM. rubra, and M. nigra, respectively), with numerous cultivars.[5][4] M. alba is native to South Asia, but is widely distributed across Europe, Southern Africa, South America, and North America.[2] M. alba is also the species most preferred by the silkworm, and is regarded as an invasive species in Brazil and the United States.[2]

The closely related genus Broussonetia is also commonly known as mulberry, notably the paper mulberry (Broussonetia papyrifera).[6]