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单词 poisonous plant
释义

poisonous plant


Thesaurus
Noun1.poisonous plant - a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organismpoisonous plant - a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organismplant life, flora, plant - (botany) a living organism lacking the power of locomotionaconite - any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowerscohosh, herb Christopher, baneberry - a plant of the genus Actaea having acrid poisonous berrieshellebore - any plant of the Eurasian genus Helleborusdogbane - any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter rootNerium oleander, oleander, rose bay - an ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regionsclimbing lily, creeping lily, gloriosa, Gloriosa superba, glory lily - any plant of the genus Gloriosa of tropical Africa and Asia; a perennial herb climbing by means of tendrils at leaf tips having showy yellow to red or purple flowers; all parts are poisonouscommon snowberry, snowberry, Symphoricarpos alba, waxberry - deciduous shrub of western North America having spikes of pink flowers followed by round white berriesAmerican holly, Christmas holly - an evergreen treepoison ash, poison dogwood, Rhus vernix, Toxicodendron vernix, poison sumac - smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oilmarkweed, poison mercury, Rhus radicans, Toxicodendron radicans, poison oak, poison ivy - climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contactRhus diversiloba, Toxicodendron diversilobum, western poison oak - poisonous shrub of the Pacific coast of North America that causes a rash on contacteastern poison oak, Rhus quercifolia, Rhus toxicodenedron, Toxicodendron quercifolium - poisonous shrub of southeastern United States causing a rash on contactChinese lacquer tree, Japanese lacquer tree, Japanese sumac, Japanese varnish tree, lacquer tree, Rhus verniciflua, Toxicodendron vernicifluum, varnish tree - small Asiatic tree yielding a toxic exudate from which lacquer is obtainedlantana - a flowering shrubAethusa cynapium, fool's parsley, lesser hemlock - European weed naturalized in America that resembles parsley but causes nausea and poisoning when eatenCicuta verosa, water hemlock - tall erect highly poisonous Eurasiatic perennial herb locally abundant in marshy areasspotted cowbane, spotted hemlock, spotted water hemlock - tall biennial water hemlock of northeastern North America having purple-spotted stems and clusters of extremely poisonous tuberous roots resembling small sweet potatoesNebraska fern, poison hemlock, poison parsley, winter fern, California fern, Conium maculatum, hemlock - large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonoushemlock water dropwort, Oenanthe crocata, water dropwort - European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonousOenanthe aquatica, water fennel - European poisonous herb with fibrous roots
Translations
Giftpflanze

poisonous plant


poisonous plant,

any plant possessing a property injurious to man or animal. Plants may be poisonous to the touch (e.g., poison ivy, poison sumac), or orally toxic (e.g., poison hemlock, deadly amanita). Many poisonous plants are of great value medicinally, e.g., digitalis, belladonna, and aconite. Numerous plants have long been known and gathered (some from prehistoric times) for specific medicinal uses in controlled dosage. Some have been used for hunting poisons (e.g., strychnine) and for insecticides (e.g., pyrethrum). Some plants are poisonous in part and harmless otherwise (the leaf blades, not the stalks, of rhubarb are poisonous) or poisonous at one season and not at another (the very young poke, or pokeweed, shoot is sometimes cultivated as a green vegetable but the older plant is poisonous). Some plants contain properties that are poisonous only under certain conditions, such as those causing photosensitivity. While animals that feed on these plants (buckwheat and others) and are subsequently exposed to sunlight develop a serious skin disorder called photosensitization. A poisonous property (selenium) of some soils, particularly in parts of the West, is absorbed by some of the growing plants, not always in themselves poisonous, and transmitted to animals and sometimes to man. Since this poison is returned to the soil by the death of the plants and animals that have absorbed it, it is again available to other plants and may even be absorbed by crop plants. Locoweed is an example of a selenium-poisonous plant. Many of our ornamental plants are poisonous—larkspur, oleander, English ivy, and lily of the valley. Poisoning by ingestion of plants by human beings is usually a matter of mistaken identity, particularly with mushrooms. Poisonous plants are usually avoided by animals unless the pasture is overgrazed. Poisonous principles may be found throughout the plant kingdom from bacteria and fungi to ferns and flowering plants.

Bibliography

See W. C. Muenscher, Poisonous Plants of the United States (rev. ed. 1951); J. M. Kingsbury, Deadly Harvest: A Guide to Common Poisonous Plants (1965); K. F. Lampe and M. A. McAnn, AMA Handbook of Poisonous and Injurious Plants (1985); W. H. Blackwell, Poisonous and Medicinal Plants (1990).

poisonous plant

[′pȯiz·ən·əs ′plant] (botany) Any of about 400 species of vascular plants containing principles which initiate pathological conditions in man and animals.

poisonous plant


poisonous plant

Pharmacognosy A plant capable evoking a toxic response and/or death. See Botanical toxicity, Herbal medicine.

poisonous plant


  • noun

Words related to poisonous plant

noun a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism

Related Words

  • plant life
  • flora
  • plant
  • aconite
  • cohosh
  • herb Christopher
  • baneberry
  • hellebore
  • dogbane
  • Nerium oleander
  • oleander
  • rose bay
  • climbing lily
  • creeping lily
  • gloriosa
  • Gloriosa superba
  • glory lily
  • common snowberry
  • snowberry
  • Symphoricarpos alba
  • waxberry
  • American holly
  • Christmas holly
  • poison ash
  • poison dogwood
  • Rhus vernix
  • Toxicodendron vernix
  • poison sumac
  • markweed
  • poison mercury
  • Rhus radicans
  • Toxicodendron radicans
  • poison oak
  • poison ivy
  • Rhus diversiloba
  • Toxicodendron diversilobum
  • western poison oak
  • eastern poison oak
  • Rhus quercifolia
  • Rhus toxicodenedron
  • Toxicodendron quercifolium
  • Chinese lacquer tree
  • Japanese lacquer tree
  • Japanese sumac
  • Japanese varnish tree
  • lacquer tree
  • Rhus verniciflua
  • Toxicodendron vernicifluum
  • varnish tree
  • lantana
  • Aethusa cynapium
  • fool's parsley
  • lesser hemlock
  • Cicuta verosa
  • water hemlock
  • spotted cowbane
  • spotted hemlock
  • spotted water hemlock
  • Nebraska fern
  • poison hemlock
  • poison parsley
  • winter fern
  • California fern
  • Conium maculatum
  • hemlock
  • hemlock water dropwort
  • Oenanthe crocata
  • water dropwort
  • Oenanthe aquatica
  • water fennel
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