Wheat stalks are the tall, slender stems of the wheat plant, which is a key cereal crop grown worldwide. These stalks support the grain heads, where the seeds develop. Typically, wheat stalks can grow to be about 2 to 4 feet tall, depending on the variety and growing conditions. The structure of a wheat stalk consists of nodes and internodes. The nodes are the thickened areas where leaves and branches emerge, while the internodes are the spaces between them. Wheat stalks play a crucial role in the plant's overall health and ability to produce grain, making them essential for agriculture.