An annual grass crop of the genus Oryza grown in flooded paddies, whose milled grain is the staple food of much of the world's population and a core cereal of Agriculture.
Potato produces more calories per acre than any other Crop: about 9.2 million kcal, compared to 7.5 million for Corn, 7.4 million for Rice, and just 3 million for Wheat. Its short growing season and tolerance for poor soils explain this.
Bamboo is not a tree but a grass — a cousin of rice. Depending on species, it flowers only once every few decades to 120 years, then dies. Since all stems in a bamboo grove grow from a single root system, when one flowers, the entire grove dies together.