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Concept
Paper mulberry
Summary
The paper mulberry (Broussonetia papyrifera, syn. Morus papyrifera L.) is a species of flowering plant in the family Moraceae. It is native to Asia, where its range includes Taiwan, China, Japan, Korea, Southeast Asia, Myanmar, and India. It is widely cultivated elsewhere and it grows as an introduced species in parts of Europe, the United States, and Africa. Other common names include tapa cloth tree.
Paper mulberry was used among ancient Austronesians in making barkcloth. It originates from subtropical regions in mainland Asia and is one of the best examples for the mainstream "Out of Taiwan" hypothesis of the Austronesian expansion. Various genetic studies have traced the origins of paper mulberry populations in the Remote Pacific all the way to Taiwan via New Guinea and Sulawesi. In the Philippines, which was along the expansion path, paper mulberries are mostly descendants of modern introductions in 1935. Ancient introductions of paper mulberry presumably went extinct in prehistory due to their replacement with hand-woven fabrics, given that paper mulberry generally only survives under human cultivation. However, its absence in the Philippines further underlines its origins in Taiwan, and not within island Southeast Asia. Additionally, paper mulberry populations in New Guinea also show genetic inflow from another expansion out of Indochina and South China.
It is believed to be the most widely transported fiber crop in prehistory, having been transported along with the full range of the Austronesian expansion, as opposed to most of the other commensal crops in Oceania. Paper mulberry is present in almost every island or island group in Polynesia, including Rapa Nui and Aotearoa. Some populations have gone recently extinct after they stopped being cultivated, such as in the Cook Islands and Mangareva, although accounts and prepared barkcloth and herbarium specimens of them exist in museum collections gathered by Europeans during the colonial era. They were spread by Polynesians primarily through vegetative propagation with cuttings and root shoots.
Official source
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