Esparto, halfah grass, or esparto grass, is a fiber produced from two species of perennial grasses of north Africa and southern Europe. It is used for crafts, such as cords, basketry, and espadrilles. Stipa tenacissima and Lygeum spartum are the species used to produce esparto. Stipa tenacissima (=Macrochloa tenacissima) produces the better and stronger esparto. It is endemic to the Western Mediterranean (growing in Portugal, Spain, Morocco, Algeria, Tunisia and Libya). The Spanish name for the plant is "atocha"; a pre-Roman word, probably Iberian. "Esparto" or σπάρτο in Greek may refer to any woven products of sedge or broom, including cords and ropes. This species grows forming a steppic landscape - esparto grasslands - which covers large parts of Spain and Algeria.
Esparto leaves have been used for millennia. The oldest baskets of esparto, dating back 7.000 years, were found in a cave in southern Spain (Cueva de los Murciélagos, Albuñol, Granada). This collection is now in the National Archaeological Museum of Spain. There are many esparto remains in archaeological settlements from as long ago as the Neolithic period, including rugs, ropes, clothes, etc. Iberians used esparto rugs as floor coverings. For Greeks, Phoenicians and Romans, esparto was the best raw material for boat ropes. For centuries, esparto grasslands have been managed by local populations in order to boost the harvest, due to its economic value. In southern Spain there is an "Esparto culture": a deep knowledge about the many uses of this fiber forms part of the traditions of these communities. After the Spanish Civil War (1936-1939), esparto was declared a "national fiber"; there was even a National Esparto Service. The opening of markets to other fibers and plastics eventually led to the decline of the esparto industry.
Esparto leaves are traditionally harvested with a stick; usually of wood or iron, but in ancient times, of bone. The stick is used to pull up a handful of leaves at a time. The esparto is not normally used immediately after harvesting. Instead, the leaves are left to dry in the sun until they turn yellowish. This is the raw esparto, which is used for different basketry techniques. An alternative is to soak the leaves in water for about a month, before drying and then crushing them. This material is known as "crushed esparto", which is stronger and easier to weave. The main techniques are: Plaited esparto: people weave a long strip of raw esparto or crushed esparto. The artifact is made by sewing this strip in different ways. Every kind of plait has a different name. Examples (in Spanish) include the "pleita" (with raw esparto) and the "recincho" (with crushed esparto), but there is a rich Spanish vocabulary for the techniques and artifacts of the esparto craft. In many cases, different terms are used in different regions. Mainly, this vocabulary belongs to the Castilian and Catalan dialect of Valencia. All techniques involve working with an odd number of strands, from 5 to 31 or more.