Which of the following is referred to as mayweed chamomile?

Mayweed chamomile is a common name used for a specific plant known scientifically as Anthemis cotula. It is a member of the Asteraceae family and is often confused with other plants due to its similar appearances and characteristics. The plant can be identified by its characteristic feathery leaves and distinct yellow disc flowers with white petals.

While bull thistle is known for its thorny, spiny appearance and is a biennial plant that primarily grows in disturbed areas, it is not referred to as mayweed chamomile. This name is specifically tied to the mayweed plant, which has a very different morphology and habitat preference.

Recognition of the correct plant terminology is vital in agricultural settings, particularly when discussing herbicide applications, as different plants may require different control methods or have varying levels of sensitivity to specific herbicides.