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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 .
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.
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 ).
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.
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 ...
Urtica massaica is a species of flowering plant in the Urticaceae (nettle family) known by many English names, including Maasai stinging nettle and forest nettle. [1] It is native to Africa, where it can be found in Congo, Burundi, Rwanda, Kenya, Uganda, and Tanzania. [1] This plant is a rhizomatous perennial herb up to 2 meters tall. It is ...
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.
Cnidoscolus urens is a perennial, tropical American stinging herb of the family Euphorbiaceae, and is one of some 100 species belonging to the genus Cnidoscolus (from Gk. knidē "nettle", skōlos "thorn", and Latin urens "burning"). [1] The plant is locally known as bull nettle, spurge nettle, bringamosa and mala mujer ("evil woman").