Triticum aestivum vulgare
This modern wheat strains is hexaploid
(42 chromosomes). It has a large seed head and a high
yield. This is the most commonly farmed wheat in modern
times, having a large number of sub-strains that can cope with
different growing conditions and show different disease
resistance. This type of wheat has replaced other wheats as
the main food crop and many of the food needs of grains like barley,
which is now mainly an animal feed grain and food additive.
Common wheat has the same ancestry as club wheat and it is closely related to Spelt, having the free threshing characteristics of that wheat variety. It is a heavily developed species with a range of selective characteristics, including short stem length, large seed head and high disease tolerance.