What is "watap"

n. (context US Canada English) The root of the spruce, and sometimes also of the pine, split lengthwise into strips and used in the construction of baskets and canoes.

Watap, watape, wattap, or wadab ( or ) is the thread and cordage used by the Native Americans and First Nations peoples of Canada to sew together sheets and panels of birchbark. The word itself comes from the Algonquian language family, but watap cordage was used and sewn by all of the people who lived where the paper birch tree grows. The cordage was usually manufactured from the roots of various species of conifers, such as the white spruce, black spruce, or Northern whitecedar, but could originate from a variety of species that sprouted root fibers with sufficient tensile strength for the required purpose. In a typical manufacturing process, the roots would be debarked, subjected to a lengthy soaking process, and then steamed or boiled to render them pliable for sewing. The roots could be left whole and used as cords, or divided into smaller fibers for twine.