The top 5 lawn weeds in America
There are a lot of differences in opinions found throughout America, but there is one thing that is agreed on from the East Coat to the West. It’s the last thing that every homeowner wants to see sprouting up in their lawn: Weeds. There are countless varieties of invasive plants throughout the country. Here are five of the weeds that are most commonly a nuisance in American lawns.
Scientific name: Cynodon dactylon
Other common names: Dhoob, Bermuda grass, dog’s tooth grass, Bahama grass, couch grass
Bermudagrass is sometimes intentionally planted in lawns, but it most commonly appears on its own as an invasive species. This type of weed appears most commonly during warmer seasons. It can grow in height anywhere from 5 to 40 cm, with individual blades ranging in length from 2 to 16 cm. In regions that do not experience frost, this weed has been known to survive all year long. In areas with mild to low temperature, high amounts of shade and infrequent rainfall Bermudagrass is uncommon. When planted as a turf, Bermudagrass is more likely to have a presence of other types of weeds than most varieties of grass.
Scientific name: Taraxacum officinale
Other common names: Dog’s lettuce, witch’s gowan, milk witch, lion’s-tooth, yellow-gowan, Irish daisy and puff-ball
Dandelions are one of the most common weeds in the U.S. The pollen found on these weeds is known to cause severe reactions in those with allergies or sensitivities. They have been officially classified as a noxious weed in United States, and has caused damage in agricultural settings due to its infestation of crops. The flower found on this weed is normally a golden yellow in color with leaves that are 5 to 25 cm in length, the stem of the plant itself is normally 1 to 10 cm. The flower on these weeds eventually matures into a ‘blow-ball’ form that contains many seeds. These seeds are distributed to nearby land when they are blown by a gust of wind or disturbed in another manner.
3. Spiny Amaranth
Scientific name: Amaranthus spinosus
Other common names: Prickly amaranth, thorny amaranth
Spiny amaranth is a green plant with spiked leaves that can grow to be as large as 120 cm tall. The stem sometimes has a red tent and two long spines at the base. It is commonly eaten in many African countries as well as the Philippines and Thailand, but it has also been known to have poisonous effects when consumed by livestock. As a variety of lawn weeds, spiny amaranth has been found in at least 36 US states.
Scientific name: Digitaria ischamum / Digitaria sanguinalis
Other common names: Sourgrass, silky umbrella grass, cotton panic grass, fonio
Crabgrass is definitely one of the most commonly spotted lawn weeds in the country. There are two species of crabgrass that are found throughout the US: Smooth crabgrass and hairy crabgrass. The appearance varies depending on the variety. This nuisance plant is usually the result of poor lawn care practices, so it is best remedied with an improved lawn care regimen instead of pre- or post- emergent herbicides.
Scientific name: Lamium amplexicaule
Other common names: Alfilaria, cranesbill, cutleaf filaree, heronsbill, pinclover
Henbit is a common weed featuring hairy stems and large flowers with one or more spiked purpleish-red tubes. They grow to be anywhere from 10 to 30 cm. The flowers begin to bloom in early spring and even during late winter in areas with milder climate. These weeds are capable of spreading using self-pollination when bees and other pollinating insects are not present. The best way to control this weed is to use pre-emergent herbicide treatments, but you may need to schedule the treatments earlier than you would for other weeds.