ClipArt ETC
Man in a sparse cornfield.

Corn crop

Man in a sparse cornfield.

The Corn Field, a painting by John Constable.

The Corn Field

The Corn Field, a painting by John Constable.

"A grass of the same genus with the valuable Ryegrass, an annual, common in the cornfields in England and many parts of Europe. It has no tufts of leaves from the rot, the glumes are as long as the spikelets, or longer, the spikelets contain 5-7 florets which are awned." — Chambers' Encyclopedia, 1875

Darnel

"A grass of the same genus with the valuable Ryegrass, an annual, common in the cornfields in England…