Green corn and Indian corn

Green corn noun - A corn plant developed in order to have young ears that are sweet and suitable for eating.

Indian corn and green corn are semantically related. In some cases you can use "Indian corn" instead a noun phrase "Green corn".

Indian corn noun - Tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times.

Green corn and Indian corn are semantically related. Sometimes you can replace phrase "Green corn" with "Indian corn", this phrases are similar.