|crop = corn|
|Used on these elements|
|Tools for this tag|
A crop of corn.
This key is ambiguous: the word "corn" always refers to maize in Australia, Canada, the United States, and New Zealand. However, in other English-speaking countries, "corn" can refer to other cereal grains, such as wheat, barley, rye, and oats. Nevertheless, crop=cereal is the predominant way to tag the latter meaning.
The more specific tag crop=maize would be preferable. However, as of 2021, it is extremely rare (used less than 1% as often as crop=corn) and has not grown in usage like crop=corn, crop=wheat, and crop=barley have.