J.M.GARG, CC BY-SA 4.0, VIA WIKIMEDIA COMMONS This weed with stickers is toxic to livestock, and although they usually avoid it, they may eat it if there is a lack of suitable forage. And it’s not unusual to find houndstongue growing in your backyard or flower beds. Houndstongue grows well in disturbed areas such as roadsides and overgrazed pastures. Clusters of stickers develop from each flower and stick to clothing and animal fur, spreading the seed they contain to new locations. From May to June, houndstongue blooms, producing reddish-purple flowers with 5 petals. In the second year, the weed produces a flowering stem that can grow up to 4 feet high. During the first year of growth, the weed develops soft, velvety leaves in a rosette. The weed has big leaves, up to 30cm long, that grow alternately up the stem, becoming smaller nearer to the top. The weed can quickly form dense monocultures that sometimes out-compete desirable plants. Originally from Asia and Europe, houndstongue is a noxious weed in many US states. Houndstongue is also called sheep bur, dog’s tongue, beggar’s lice, and woolmat. The burs grow in clusters of around 20-50 at the end of stems. The plant often has a spreading growth, forming large mats that reach 2 ft. The plant has erect or spreading stems that grow up to 1.5 ft. The burrs contain seeds and stick to fur, hair, and clothing, enabling the weed to spread. At maturity, the grass weed develops spiky burrs that can cause injury to grazing cattle and livestock. Field Sandbur ( Cenchrus longispinus)Īlso called burgrass and spiny sandbur, field sandbur is a summer annual grass weed.įield sandbur is a troublesome weed in pastures and hay meadows. The weed produces small yellow flowers with 5 petals within a few weeks of germinating. The stems grow from a central tap root, are covered in hairs, and can reach up to 5 feet long. As they spread, the stems form a dense mat. After germinating in the spring, it quickly develops deep roots and sends out long stems that creep along the ground. Goat head weed is a very fast-growing weed. This helps the plant to spread as the seeds are carried to a new place. ![]() The stickers can puncture bare feet, thin shoes, bicycle tires, and animal hooves. The weed has sharp thorns on its fruit that are painful to step on. It also goes by the names puncturevine, devil’s thorn, caltrop, and bindii. Goat head weed is a notorious noxious weed. Other similar burr species in the same family include woolly medic (M. Between March and June, burr medic produces small yellow flowers. ![]() At each place that stem nodes touch the ground, they can root. Hairless, reddish-purple stems extend up to 30 inches as the weed creeps across your lawn. They look similar to clover, hence the alternative name for this plant, bur clover. ![]() The weed produces spiky sticker balls after it flowers that eventually dry up and turn brown.īurr medic has green, serrated-edged leaves that consist of 3 leaflets. Burr Medic ( Medicago polymorpha)īurr medic is another sticker-producing weed that’s common to find on your lawn. ![]() In spring, lawn burweed produces tiny flowers that are difficult to see without close inspection. It produces small, feathery leaves that look like parsley and grow to about 1-½ inches long. Lawn burweed thrives on thin turf and grows in small patches to a height of 3-4 inches. And by the spring, the weed disperses small spiky balls in the grass containing the seeds - the stickers. Lawn burweed is an annual broadleaf weed that grows during the cool-season. And that final name is a good description of what it feels like to walk on a burweed-infested lawn with bare feet. Lawn burweed is also known as spurweed, bindi weed, and stinging grass. Here are some of the most common types of sticker weeds you’re likely to come across: Lawn Burweed ( Soliva sessilis) Many sticker weeds are annual weeds that grow each year from the seeds they disperse. It’s common to find sticker weeds growing on your lawn, where they pose a menace to bare feet. Sticker weeds are a group of weeds with spiky burs that encapsulate their seeds and stick to clothing and animal fur. Are sticker weeds poisonous? Types Of Sticker Weeds
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