Analysis of information sources in references of the Wikipedia article "Yucca" in English language version.
Yucca leaves, and fibers derived from them, were some of the first plant materials used by early man in North America. Long before early hunters and gatherers settled down to building villages or raising crops, they already were making baskets, fishnets, carrying bags, sandals and mats from yucca and other native plant fibers. In the Southwest, yucca leaves are still used to make round trays and baskets. [...] During World War II, researchers studied the possibility of harvesting fibers from existing wild populations of yucca in the Southwest [...]. [...] Yucca fibers vary in length and fineness depending on the species, but in general they are softer and more flexible than sisal or agave fibers. [...] Hand-processed yucca fibers can be spun into fine yarns for use in weaving, braiding or twining.
[...] specimens of yucca cordage and coarse 'cloth' (matting) from Y. filamentosa [...].
