Cereal grass and Wild rice

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

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

Wild rice noun - Perennial aquatic grass of North America bearing grain used for food.

Cereal grass and wild rice are semantically related. You can use "Cereal grass" instead a noun phrase "Wild rice".