We use cookies to make wikiHow great. The leaves are very large, oval, have rounded tips, and have a wavy look to the edges. It also has typically wider leaves (though shape ranges from oval to lance-shaped), and has pink, white, or variegated flowers growing from the base of the leaf. This species is an annual that grows from seed spread from pre-existing hemp nettles, or deposited by animals, and human activity. To learn more, like how to identify different species of stinging nettles, read on! The stinging hairs act a lot like a hypodermic needle when your skin brushes against them. Pets may have an allergic reaction to this plant if they come in contact with it, so due diligence is needed to keep them away and keep them safe. How do you treat a bee sting on the eye? It may be of interest to note that not all species of stinging nettle have literal stinging properties. Stinging nettle ( Urtica dioica) is a fast-growing herbaceous perennial that is usually regarded as a weed but is occasionally grown as a garden plant. Nettles are a cooling herb so work well for those pets that are always hot. It also catches a bad wrap as a bully (admittedly justified) by causing a painful itching and burning sensation to those who come in contact with the sharp hairs that cover its leaves. However, some plants have smooth stems so you should also check for leaves that are long, with coarsely serrated edges and a pointed end. Can I give my cat Benadryl for a bee sting? What are the top 10 most poisonous plants? The swollen base of each tiny, hollow hair contains a droplet of formic acid. Who wrote the music and lyrics for Kinky Boots? But if you get stung on the eyelid or cornea, you should seek attention from an ophthalmologist. If you let your chickens out to free range, the nettles can provide a good hiding place and a bit of shade. Stomach upset, cramping, vomiting, or diarrhea, can sometimes be part of an allergic reaction. One of the most toxic and deadliest caterpillars is the Giant Silkworm moth or South American Caterpillar ( Lonomia obliqua ). Hemp nettle has been deemed a noxious weed in some parts of North America. Though rare, bee stings do happen near or in the eye. Urtica dioica (stinging nettle) in the Herb Garden. To create this article, 21 people, some anonymous, worked to edit and improve it over time. Caution: When collecting stinging nettle always cover up all exposed skin. This succulent-looking weed is tasty and great for your flock. Enjoy! For young children, you may want to put soft gloves or mittens on their hands to help avoid scratching. his ankles and calves). I was picking raspberries wearing a t-shirt. These hairs contain chemicals, such as formic acid and histamine, which can irritate the skin and cause stinging, itching, and redness . {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/83\/Brennnessel_1.jpeg\/460px-Brennnessel_1.jpeg","bigUrl":"\/images\/thumb\/8\/83\/Brennnessel_1.jpeg\/687px-Brennnessel_1.jpeg","smallWidth":460,"smallHeight":374,"bigWidth":688,"bigHeight":560,"licensing":"