A wheat stalk is the stem of the wheat plant, which is a type of grass cultivated for its grain. The stalk supports the plant and carries nutrients and water from the roots to the leaves and grain heads. Wheat is a staple food crop, and its stalks can grow to be several feet tall, depending on the variety. The wheat stalk consists of nodes and internodes, with the nodes being the points where leaves emerge. After harvesting, the stalks can be used for various purposes, including animal bedding and straw for construction, as well as being a key component in the production of wheat flour.