The image is a vintage botanical illustration of an onion plant. The onion bulb is a reddish-pink color, with thin white roots extending downwards. Several long, green leaves sprout from the top of the bulb, and a tall green stalk with a small, spherical flower head rises above them. The plant is depicted against a pale green ground and a white background. The entire illustration is framed by a series of rectangular borders in shades of brown, pink, and a lighter beige. The style is reminiscent of medieval or early Renaissance botanical drawings, with simple shapes and flat colors.