Corn

Corn was a common vegetable found on Earth. It was usually grown on a farm. (PROSE: Planet of Bones)

Tosh was a homeless man who once stole some corn, a broom and a few other things from the Third Doctor's greenhouse. (PROSE: Morphology)

Christmas dinner at the Los Angeles Midnight Mission included turkey, stuffing, mashed potatoes, corn, bread and pumpkin pie. (PROSE: Goodwill Toward Men)

The foods that Ormsin Ives offered for trade to the Hufko included roses, azaleas, oat mash, corn and rice. (PROSE: The Diplomat's Story)