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Nettle
{{redirect, Nettle Nettle refers to plants with stinging hairs, particularly those of the genus ''Urtica''. It can also refer to plants which resemble ''Urtica'' species in appearance but do not have stinging hairs. Plants called "nettle" include: * ball nettle – '' Solanum carolinense'' * bull nettle ** ''Cnidoscolus stimulosus'', bull nettle, spurge nettle ** '' Cnidoscolus texanus'', Texas bull nettle ** ''Cnidoscolus urens'', bull nettle ** ''Solanum elaeagnifolium'', bull nettle, silver-leaf nettle, white horse-nettle * dead nettle, dumb nettle ** ''Lamium'', particularly '' Lamium album'' * false nettle – ''Boehmeria'' * flame nettle – ''Coleus'' * hedge nettle – ''Stachys'' * hemp nettle – ''Galeopsis'' * horse nettle: ** ''Agastache urticifolia'' – horse-nettle ** '' Solanum carolinense'' – ball-nettle, Carolina horse-nettle ** ''Solanum dimidiatum'' – western horse-nettle, robust horse-nettle ** ''Solanum elaeagnifolium'' – bull nettle, silver-leaf nettl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urtica Dioica
''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, it is now found worldwide, including New Zealand and North America. The species is divided into six subspecies, five of which have many hollow stinging hairs called trichomes on the leaves and stems, which act like hypodermic needles, injecting histamine and other chemicals that produce a stinging sensation upon contact ("contact urticaria", a form of contact dermatitis). The plant has a long history of use as a source for traditional medicine, food, tea, and textile raw material in ancient (such as Saxon) and modern societies. Description ''Urtica dioica'' is a dioecious, herbaceous, perennial plant, tall in the summer and dying down to the ground in winter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urtica
''Urtica'' is a genus of flowering plants in the family Urticaceae. Many species have stinging hairs and may be called nettles or stinging nettles, although the latter name applies particularly to '' Urtica dioica''. ''Urtica'' species are food for the caterpillars of numerous Lepidoptera (butterflies and moths), such as the tortrix moth '' Syricoris lacunana'' and several Nymphalidae, such as '' Vanessa atalanta'', one of the red admiral butterflies. The generic name ''Urtica'' derives from the Latin for sting. Description ''Urtica'' species grow as annuals or perennial herbaceous plants, rarely shrubs. They can reach, depending on the type, location and nutrient status, a height of . The perennial species have underground rhizomes. The green parts have stinging hairs. Their often quadrangular stems are unbranched or branched, erect, ascending or spreading. Most leaves and stalks are arranged across opposite sides of the stem. The leaf blades are elliptic, lanceolate, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solanum Carolinense
''Solanum carolinense'', the Carolina horsenettle, is not a true nettle, but a member of the Solanaceae, or nightshade family. It is a perennial herbaceous plant, native to the southeastern United States, though its range has expanded throughout much of temperate North America. The plant is an invasive in parts of Europe, Asia, and Australia. The stem and undersides of larger leaf veins are covered with prickles. "Horsenettle" is also written "horse nettle" or "horse-nettle", though USDA publications usually use the one-word form. Though there are other horsenettle nightshades, ''S. carolinense'' is the species most commonly called ''"the'' horsenettle". Other common names include radical weed, sand brier or briar, bull nettle, tread-softly, Solanum mammosum ("apple of Sodom"), devil's tomato and wild tomato. Description Leaves are alternate, elliptic-oblong to oval, long, and each is irregularly lobed or coarsely toothed. Both surfaces are covered with fine hairs. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stinging Plant
A stinging plant or a plant with stinging hairs is a plant with hairs (trichomes) 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. Stinging hairs occur particularly in the families Urticaceae, Loasaceae, Boraginaceae (subfamily Hydrophylloideae) and Euphorbiaceae. Such hairs have been shown to deter grazing mammals, but are no more effective against insect attack than non-stinging hairs. Many plants with stinging hairs have the word "nettle" in their English name, but may not be related to "true nettles" (the genus ''Urtica''). Though several unrelated families of plants have stinging hairs, their structure is generally similar. A solid base supports a single elongated cell with a brittle tip. When the tip is broken, the exposed sharp point penetrates the skin and pressure injects toxins. The precise chemicals involve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stachys
''Stachys'' is a genus of plants, one of the largest in the mint family Lamiaceae.Harley, R. M., et al. 2004. "Labiatae". pages 167–275. In: Kubitzki, K. (editor) and J. W. Kadereit (volume editor). ''The Families and Genera of Vascular Plants'' volume VII. Springer-Verlag: Berlin; Heidelberg, Germany. Estimates of the number of species vary from about 300, to about 450.Mabberley, D. J. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. ''Stachys'' is in the subfamily Lamioideae and its type species is ''Stachys sylvatica''.''Stachys'' In: Index Nominum Genericorum. In: Regnum Vegetabile (see ''External links'' below). The precise extent of the genus and its relationship to other genera in the subfamily are poorly known. Range and naming The distribution of the genus covers Europe, Asia, Africa, Australasia and North America. Common names include hedgenettle, heal-all, self-heal, woundwort, betony, and lamb's ears. Wood betony, ''S. offic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamium
''Lamium'' (dead-nettles) is a genus of about 30 species of flowering plants in the family Lamiaceae, of which it is the type genus. They are all herbaceous plants native to Europe, Asia, and northern Africa, but several have become very successful weeds of crop fields and are now widely naturalised across much of the temperate world. Description The genus includes both annual and perennial species; they spread by both seeds and stems rooting as they grow along the ground. They have square stems and coarsely textured pairs of leaves, often with striking patterns or variegation. They produce double-lipped flowers in a wide range of colours. The common name "dead-nettle" has been derived from the German ''taube-nessel'' ("deaf nettle", or "nettle without a kernel"), and refers to the resemblance of '' Lamium album'' to the very distantly related stinging nettles, but unlike those, they do not have stinging hairs and so are harmless or apparently "dead". Several closely relat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galeopsis
''Galeopsis'', commonly called hemp-nettle or hempnettle, is a genus of annual herbaceous plants native to Europe and Asia. Some species are naturalized in North America and New Zealand. The plants are poisonous. Several species are widespread weeds and some are used as medicinal herbs. Species Species include: # ''Galeopsis × acuminata'' Rchb. - Germany ''(G. pubescens × G. tetrahit)'' # ''Galeopsis bifida'' Boenn. – bifid hemp-nettle, split-lip hemp-nettle, splitlip hempnettle, common hemp-nettle, and large-flowered hemp-nettle - widespread across much of Europe and Asia; naturalized in North America # ''Galeopsis × carinthiaca'' Porsch ex Fiori - Italy, Czech Republic ''(G. bifida × G. pubescens)'' # ''Galeopsis × haussknechtii'' Ludw. - Czech Republic ''(G. ladanum × G. segetum)'' # ''Galeopsis ladanum'' L. - widespread across much of Europe and Asia; naturalized in scattered sites in North America # ''Galeopsis × ludwigii'' Hausskn. - Germany, Czech Republic ''(G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urtica Ferox
''Urtica ferox'', commonly known as tree nettle and in Māori: ongaonga, taraonga, taraongaonga, оr okaoka, is a species of nettle endemic to New Zealand. Unlike the other species in the genus ''Urtica'' found in New Zealand, all of which are herbaceous, ongaonga is a large woody shrub that can grow to a height of , with the base of the stem reaching in thickness. It has large spines that can result in a painful sting that lasts several days. Ongaonga is the main source of food for larvae of the New Zealand red admiral butterfly or kahukura, ''Vanessa gonerilla''. Description ''U. ferox'' can grow to a height of 3 m (9.8 ft) with the base of the stem reaching 12 cm (4.7 in) in thickness. The pale green leaves are very thin like a membrane and the surface of the leaf, stems and stalks are covered in stiff stinging hairs that can grow up to long. These spines are prominent along the salient mid-vein and leaf margin. The leaves range from in width and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cnidoscolus Texanus
''Cnidoscolus texanus'', commonly known as Texas bullnettle (also Texas bull nettleNieland, Lashara J. and Willa F. Finley (2009) Lone Star Wildflowers: A Guide to Texas Flowering Plants. Texas Tech University Press. Lubbock, Texas x, 320 pp. and Texas bull-nettleTveten, John and Gloria Tveten (1993) Wildflowers of Houston and Southeast Texas. University of Texas Press. Austin, Texas. ix, 309 pp. ), tread-softly, mala mujer, and finger rot, is a perennial herb covered with stinging hairs. The main stem, branches, leaves, and seed pods are all covered with hispid or glass-like bristly hairs that release an allergenic toxin upon contact. Contact with the plant results in intense pain: stinging, burning, and itching lasting for hours. It is native to the U.S. states of Texas, Arkansas, Kansas, Louisiana, and Oklahoma and also native to the northeastern state of Tamaulipas, Mexico. It is an herbaceous flowering plant that grows between tall and as much as across.Johnston MC, and B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamium Album
''Lamium album'', commonly called white nettle or white dead-nettle, is a flowering plant in the family Lamiaceae. It is native throughout Europe and Asia, growing in a variety of habitats from open grassland to woodland, generally on moist, fertile soils. Description ''L. album'' is an herbaceous perennial plant growing to tall, with green, four-angled stems. The leaves are long and broad, triangular with a rounded base, softly hairy, and with a serrated margin and a petiole up to long; like many other members of the Lamiaceae, they appear superficially similar to those of the stinging nettle (''Urtica dioica'') but do not sting, hence the common name "dead-nettle". The flowers are white, produced in whorls ('verticillasters') on the upper part of the stem, the individual flowers long. The flowers are visited by many types of insects, but mostly by long-tongued insects, like bees. Distribution ''L. album'' is native to Eurasia, from Ireland in the West to Japan in the E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cnidoscolus Stimulosus
''Cnidoscolus stimulosus'', the bull nettle, spurge 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. It prefers sandy, well-drained soil and mostly exists in pine/blackjack oak forests on sandhills, rims of Carolina bays, dunes, dry pastures, fields and roadsides. Description The green leaves of this plant are alternate, consisting of three to five untoothed lobes. The large, white flowers have five petals. Male and female flowers are on different plants. Flowers occur throughout the spring and summer followed by a small capsule that produces three large seeds. The entire plant above ground, including the flower petals, is covered with stinging hairs. The tap root can be used as an excellent potato substitute, tasting like pasta. As the common names imply, the urticating hairs on this plant contain a caustic irritant that in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solanum Elaeagnifolium
''Solanum elaeagnifolium'', the silverleaf nightshade or silver-leaved nightshade, is a common native plant to parts of the southwestern USA, and sometimes weed of western North America and also found in South America. Other common names include prairie berry, silverleaf nettle, white horsenettle or silver nightshade. In South Africa it is known as silver-leaf bitter-apple or ''satansbos'' ("Satan's bush" in Afrikaans). More ambiguous names include "bull-nettle", " horsenettle" and the Spanish ''" trompillo"''. The plant is also endemic to the Middle East. ''Solanum elaeagnifolium'' was described by A. J. Cavanilles. The plant described under the same name by W. Herbert and C. L. Willdenow based on E.G. von Steudel is '' Solanum aethiopicum''. Description and ecology It is a perennial 10 cm to 1 m in height. The stems are covered with nettle-like prickles, ranging from very few on some plants to very dense on others. Leaves and stems are covered with downy hairs (tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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