What color is typically associated with rapeseed flowers commonly found in agricultural regions?

Rapeseed flowers are primarily known for their bright yellow color, which is a distinctive feature of these plants, particularly when they bloom in agricultural fields. This vibrant yellow hue is easily recognizable and often contributes to the picturesque landscapes in farming areas, especially during spring and early summer when rapeseed is in full bloom. The yellow flowers not only signify the plant's flowering stage but also play a significant role in agricultural practices, as rapeseed is cultivated for its oil and as a cover crop to help improve soil health. The other colors listed, such as green, red, and purple, do not accurately represent rapeseed flowers and are associated with different plants or elements in nature.