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Many species have stinging hairs and may be called nettles or stinging nettles (the latter name applying particularly to U. dioica). The generic name Urtica derives from the Latin for 'sting'. Due to the stinging hairs, Urtica are rarely eaten by herbivores , but provide shelter for insects.
The Urticaceae / ɜːr t ɪ ˈ k eɪ s iː / are a family, the nettle family, of flowering plants. The family name comes from the genus Urtica . The Urticaceae include a number of well-known and useful plants, including nettles in the genus Urtica , ramie ( Boehmeria nivea ), māmaki ( Pipturus albidus ), and ajlai ( Debregeasia saeneb ).
Stems will vary in between being smooth and covered in stiff hairs (glabrous to strigose), but have few of the stinging hairs the plant is known for. [4] The leaves of Urtica gracilis are variable, elliptic, lanceolate, or ovate, and 6–20 cm long by 2–13 cm across, with a base that can either be rounded or shaped like a heart (rounded to ...
The “sting” of stinging nettle comes from minuscule, needle-like hairs on the leaves of this tough perennial plant. The hairs penetrate the skin as soon as you brush against it.
Urtica dioica, often known as common nettle, burn nettle, stinging nettle (although not all plants of this species sting) or nettle leaf, or just a nettle or stinger, is a herbaceous perennial flowering plant in the family Urticaceae. Originally native to Europe, much of temperate Asia and western North Africa, [2] it is now found worldwide.
Cnidoscolus stimulosus, the bull nettle, [1] spurge nettle, stinging nettle, tread-softly or finger rot, is a perennial herb covered with stinging hairs, native to southeastern North America. A member of the family Euphorbiaceae (spurge family), it is not a true nettle .
Stinging hairs of Urtica dioica (stinging nettle) A stinging plant or a plant with stinging hairs is a plant with hairs on its leaves or stems that are capable of injecting substances that cause pain or irritation. Other plants, such as opuntias, have hairs or spines that cause mechanical irritation, but do not inject chemicals.
English: Urtica dioica (Stinging Nettle) grown as a botanical specimen in Cambridge University Botanic Garden. Plant label shown in the lower right corner. Plant label shown in the lower right corner.