Spelt (Triticum spelta) is a hexaploid species of wheat. Spelt was an important staple in parts of Europe from the Bronze Age to medieval times; it now survives as a relict crop in Central Europe and has found a new market as a health food. Spelt is sometimes considered a subspecies of the closely related species common wheat (T. aestivum), in which case its botanical name is considered to be Triticum aestivum subsp. spelta. Spelt flour is becoming more easily available, being sold in British supermarkets since 2007. Spelt is also sold in the form of a coarse pale bread, similar in colour and in texture to light rye breads but with a slightly sweet and nutty flavour. Biscuits and crackers are also produced, but are more likely to be found in a specialty bakery or health food store than in a regular grocer's shop.