Glebionis segetum aka Corn Marigold

Glebionis segetum (syn. Chrysanthemum segetum), commonly known as corn marigold or corn daisy, is a species of flowering plant in the family Asteraceae. It is believed to be native to the eastern Mediterranean region but has now naturalized in western and northern Europe, China, and parts of North America. This herbaceous annual or perennial plant grows up to 80 cm tall and has deeply lobed leaves that are 5-20 cm long. The bright yellow flowerheads, which are 3.5-5.5 cm in diameter, consist of a ring of ray florets and a center of disc florets. Besides being a beautiful garden plant, Glebionis segetum is also highly valued for its nectar production, making it an important source of nectar for insects. It attracts small butterflies and hoverflies and has been observed to be a favorite food of Japanese beetles. However, it can become an invasive weed in certain areas where it has naturalized outside of its native range. Historically, the corn marigold was considered a serious weed in Scotland during the 13th century, as indicated by a law that fined farmers for allowing even a single plant to produce seed among their crops. On the other hand, in Crete and Greece, a variety of Glebionis segetum called neromantilida is consumed by locals, who eat the leaves and tender shoots raw in salads or browned in hot olive oil. To remove this weed, hand pulling is recommended, but it should be done carefully to minimize soil disturbance. Placing one hand flat on the ground and using the other hand to remove the weed between two fingers can effectively eliminate small weeds. It is important to be cautious when disturbing the soil, as many weeds thrive in disturbed areas.