Timopheev's Wheat (Triticum timopheevii, also called Sanduri Wheat) is a tetraploidwheat that has both cultivated and wild forms. The domesticated form is restricted to western Georgia, while the wild form (formerly categorized as T. araticum Jakubz.) can be found across south-eastern Turkey, north Iraq, west Iran and Transcaucasia.
Timopheev's wheat evolved isolated from the more common Triticum turgidum, and hybrids between T. timopheevii and T. turgidum are reportedly sterile with "a considerable amount of chromosomal irregularities in meiosis".
References
Daniel Zohary and Maria Hopf, Domestication of plants in the Old World, third edition (Oxford: Oxford University Press), pp. 58f.
