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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.
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 ...
Mowing weakens stinging nettle by decreasing leaf mass and limiting root growth. It also eliminates spread by seed. Mowing is an effective method for controlling stinging nettle growing in ...
Urticating hairs of a stinging nettle. The most common form of urticating hairs in plants are typified by nettles, which possess sharp-pointed hollow bristles seated on a gland that secretes an acrid fluid. The points of these bristles usually break off in the wound, and the acrid fluid is pressed into it.
Tortoiseshell butterflies tend to be unpalatable to birds. If a bird sees this bright red colouring, then they will be less likely to eat the butterfly. [14] The tortoiseshell butterfly is particularly fast. When discovered and attacked by a predator the tortoiseshell butterfly will fly away in a straight line in order to outstrip the predator ...
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