poisonous plant

Other forms: poisonous plants

Definitions of poisonous plant

1. noun

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

   aconite

   any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers

   baneberry, cohosh, herb Christopher

   a plant of the genus Actaea having acrid poisonous berries

   hellebore

   any plant of the Eurasian genus Helleborus

   dogbane

   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 root

   Nerium 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 regions

   Gloriosa superba, climbing lily, creeping lily, gloriosa, 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 poisonous

   Symphoricarpos alba, common snowberry, snowberry, waxberry

   deciduous shrub of western North America having spikes of pink flowers followed by round white berries

   American holly, Christmas holly

   an evergreen tree

   Rhus vernix, Toxicodendron vernix, poison ash, poison dogwood, poison sumac

   smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil

   Rhus radicans, Toxicodendron radicans, markweed, poison ivy, poison mercury, poison oak

   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 contact

   Rhus diversiloba, Toxicodendron diversilobum, western poison oak

   poisonous shrub of the Pacific coast of North America that causes a rash on contact

   Rhus quercifolia, Rhus toxicodenedron, Toxicodendron quercifolium, eastern poison oak

   poisonous shrub of southeastern United States causing a rash on contact

   Chinese lacquer tree, Japanese lacquer tree, Japanese sumac, Japanese varnish tree, Rhus verniciflua, Toxicodendron vernicifluum, lacquer tree, varnish tree

   small Asiatic tree yielding a toxic exudate from which lacquer is obtained

   lantana

   a flowering shrub

   Aethusa cynapium, fool's parsley, lesser hemlock

   European weed naturalized in America that resembles parsley but causes nausea and poisoning when eaten

   Cicuta verosa, water hemlock

   tall erect highly poisonous Eurasiatic perennial herb locally abundant in marshy areas

   spotted 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 potatoes

   California fern, Conium maculatum, Nebraska fern, hemlock, poison hemlock, poison parsley, winter fern

   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 poisonous

   Oenanthe crocata, hemlock water dropwort, water dropwort

   European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonous

   Oenanthe aquatica, water fennel

   European poisonous herb with fibrous roots

   Aconitum napellus, helmet flower, helmetflower, monkshood

   a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite

   Aconitum lycoctonum, wolf's bane, wolfbane, wolfsbane

   poisonous Eurasian perennial herb with broad rounded leaves and yellow flowers and fibrous rootstock

   Actaea rubra, red baneberry, red-berry, redberry, snakeberry

   North American perennial herb with alternately compound leaves and racemes of small white flowers followed by bright red oval poisonous berries

   Actaea alba, doll's eyes, white baneberry, white bead, white cohosh

   North American herb with white poisonous berries

   Helleborus foetidus, bear's foot, setterwort, stinking hellebore

   digitate-leaved hellebore with an offensive odor and irritant qualities when taken internally

   Christmas rose, Helleborus niger, black hellebore, winter rose

   European evergreen plant with white or purplish rose-like winter-blooming flowers

   Helleborus orientalis, black hellebore, lenten rose

   slightly hairy perennial having deep green leathery leaves and flowers that are ultimately purplish-green

   Helleborus viridis, green hellebore

   deciduous plant with large deep green pedate leaves and nodding saucer-shaped green flowers

   Apocynum androsaemifolium, common dogbane, rheumatism weed, spreading dogbane

   North American perennial having pinkish flowers in loose cymes; used in folk medicine for pain or inflammation in joints

   Apocynum cannabinum, Indian hemp, rheumatism weed

   Canadian dogbane yielding a tough fiber used as cordage by Native Americans; used in folk medicine for pain or inflammation in joints

   Apocynum pumilum, Rocky Mountain dogbane

   North American plant similar to common dogbane

   type of:

   flora, plant, plant life

   (botany) a living organism lacking the power of locomotion