istle

noun
  1. 1

    A variety of Agave angustifolia var. angustifolia (syn. Agave rigida), furnishing a strong coarse fiber.

  2. 2

    The fiber itself; pita, or Tampico fiber.

Source: https://en.wiktionary.org/wiki/istle, https://en.wiktionary.org/wiki/ixtle