00030 - cereal grains (and cereal-like grains) (efsa foodex2)
00560 - wheat and similar- (efsa foodex2)
http://www.langual.org/langual_thesaurus.asp?termid=A001M
The group includes any type of grain from Wheat or species similar to Wheat (Triticum spp.) or sharing the same pesticide MRL, as defined by the EU pesticide regulation, such as Common wheat and Canadian hard winter wheat.[https://en.wikipedia.org/wiki/Wheat] and [https://www.google.co.uk/search?tbm=isch&q=Triticum grains]
canadian hard winter wheat
common wheat
http://langual.org
triticum spp.
requires discussion