Maclura tinctoria, known as old fustic and dyer's mulberry,[3] is a medium to large tree of the Neotropics, from Mexico to Argentina. It produces a yellow dye called fustic primarily known for coloring khaki fabric for U.S. military apparel during World War I.[citation needed] This dye contains the flavonoid morin.[4] It is dioecious, so both male and female plants are needed to set seed.[5]
Old fustic is not to be confused with young fustic (Rhus cotinus) from southern Europe and Asia, which provides a more fugitive colour.
Dyeing
Fustic is a bright yellow dye that is very color-fast when used with mordants. It is frequently combined with other dyestuffs and various mordants to produce a range of yellow and greenish colors:[3]
With woad or indigo: bright or Saxon greens
With bichromate of potash: old gold
With logwood and bichromate of potash: greenish yellows
"Maclura tinctoria". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 17 December 2017.
Leite, Viviane Gonçalves; Mansano, Vidal Freitas; Pádua Teixeira, Simone (2018). "Floral development of Moraceae species with emphasis on the perianth and androecium". Flora. 240: 116–132. doi:10.1016/j.flora.2018.01.009.
Mabberley, D.J. (1997). The plant book: A portable dictionary of the vascular plants. Cambridge: Cambridge University Press.
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