Turgidum wheat (free threshing) varieties are closely related to durum wheat, the main distinction being that the grain of turgidum wheat is much softer in texture. It is this softness that most likely caused their near extinction, because the bran and endosperm are not so easily separated in the roller milling system developed in the 1880s. Until that time Turgidum wheat varieties were important in England, France, Italy, and all the countries bordering the Mediterranean. Source: The Whole Grain Connection
Tetraploid (4x)
Triticum turgidum ssp. turgidum
Cone wheat, Poulard wheat, Rivet Wheat