It is only known to exist in the former Sepik Province (now East Sepik and Sandaun Provinces) and Morobe Province, where it grows in rainforests in the foothills and low areas of mountains.
Musa boman is a species of wild banana (genus Musa), native to the West Sepik (Sandaun) Province of Papua New Guinea, in the eastern portion of the island of New Guinea.
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It is called kwypep by the Kalam tribe (Madang Province), possibly ogoyam in the Telefol language (in Sandaun Province) and momo by the Rofaifo (Southern Highlands Province), although that name is also used for other water rats, like the common Rakali.
A population existed in the Telefomin region of Sandaun Province, Papua New Guinea, as recently as 1984.