Cereal grass and Secale cereale

Cereal grass noun - Grass whose starchy grains are used as food: wheat; rice; rye; oats; maize; buckwheat; millet.

Secale cereale and cereal grass are semantically related. In some cases you can replace phrase "Secale cereale" with "Cereal grass", this phrases are similar.

Secale cereale noun - Hardy annual cereal grass widely cultivated in northern Europe where its grain is the chief ingredient of black bread and in North America for forage and soil improvement.

Cereal grass and Secale cereale are semantically related. You can use "Cereal grass" instead a noun phrase "Secale cereale".