In plaiting, or checkerwork, two elements are woven over and under each other at right angles. Twilled weave is much the same, except that the weft (horizontal) materials are woven over two or more warps (verticals). In the Southwest, winnowing baskets, known as yucca-ring baskets, are often plaited. Southeastern basket-makers have made twill-plaited cane basketry for thousands of years. Checker- and wicker-plaiting predominate in the Northeast, where 19th-century basket-makers also used curled weft overlays to begin the “fancy basket” tradition that continues among today’s weavers.