Anthemis cotula is a common weed that is also known as mayweed. This weed is a flowering annual that has a powerful odor. This odor is so pungent that it can be detected from several feet away. Mayweed is not native to the United States but has been brought in from its native Europe. It can be found growing in open areas such as lawns, fields, and along ditch banks. This plant can be toxic to animals including dogs, cats, and horses.
Mayweed can be identified by its strong smell. It grows to a height of 12 inches and has multiple stems. The leaves of the plant also have their own stems making this weed branchy in nature. Leaves are green with a pinnate shape and have hairs on the upper surface. Mayweed is often confused with the fennel plant due to its leaves. The flowers of this plant have white petals with a yellow core. Although the flowers are very nice to look at, this weed should never be encouraged to grow on your property. If allowed to thrive, it can be hard to get rid of.
Just like many fast-growing weeds, this plant has to be carefully controlled. Proper preventative lawn maintenance is needed to stay ahead of this plant. Mowing the turf weekly during the spring and summer will help this plant from shading out other plants. Many lawn care professionals will also suggest pulling this plant by hand. But gloves need to be worn because of the smell. Remember to always dispose of this plant in a place that is not accessible to animals. Weed control methods such as herbicides work well to rid your property of this weed. Once mayweed has taken over large areas of land, a professional lawn service company will be needed to handle it properly.