Common oat

Avena sativa is a cereal grass that was domesticated as a secondary crop due to its seed's similarity to other cereals. It is cultivated for both fodder and grain. Oats are less tolerant of cold winters than wheat, barley, or rye, but require less summer heat and more moisture, making them suitable for regions with cool, wet summers. They are widely grown in areas such as Northwest Europe and have a broad global distribution, including regions in North America, Europe, Asia, and South America. The plant's ability to grow thickly and outcompete weeds contributes to its agricultural value.