Morus, a genus of flowering plants in the family Moraceae, consists of 19 species of deciduous trees commonly known as
mulberries, growing wild and under cultivation in many temperate world regions. Generally, the genus has 64 subordinate taxa, three of which are well-known and are ostensibly named for the fruit color of the best-known cultivar: white, red, and black mulberry, with numerous cultivars and some taxa currently unchecked and awaiting taxonomic scrutiny.
M. alba is native to South Asia, but is widely distributed across Europe, Southern Africa, South America, and North America.
M. alba is also the species most preferred by the silkworm, and is regarded as an invasive species in Brazil and the United States.