| awlwort | (noun) small aquatic plant having tufted awl-shaped leaves in a basal rosette and minute white flowers; circumboreal | Synonyms: Subularia aquatica |
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| barrenwort | (noun) slow-growing creeping plant with semi-evergreen leaves on erect wiry stems; used as ground cover | Synonyms: bishop's hat, Epimedium grandiflorum |
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| bellwort | (noun) any of various plants of the genus Uvularia having yellowish drooping bell-shaped flowers | Synonyms: merry bells, wild oats |
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| birthwort | (noun) creeping plant having curving flowers thought to resemble fetuses; native to Europe; naturalized Great Britain and eastern North America | Synonyms: Aristolochia clematitis |
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| bladderwort | (noun) any of numerous aquatic carnivorous plants of the genus Utricularia some of whose leaves are modified as small urn-shaped bladders that trap minute aquatic animals | - |
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| bloodwort | (noun) any of various plants of the family Haemodoraceae; roots contain a deep red coloring matter | - |
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| butterwort | (noun) any of numerous carnivorous bog plants of the genus Pinguicula having showy purple or yellow or white flowers and a rosette of basal leaves coated with a sticky secretion to trap small insects | - |
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| colewort | (noun) a hardy cabbage with coarse curly leaves that do not form a head | Synonyms: borecole, Brassica oleracea acephala, cole, kail, kale |
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| coralwort | (noun) European bittercress having a knotted white rootstock | Synonyms: Cardamine bulbifera, coral-root bittercress, coralroot, Dentaria bulbifera |
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| danewort | (noun) dwarf herbaceous elder of Europe having pink flowers and a nauseous odor | Synonyms: dwarf elder, Sambucus ebulus |
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| fanwort | (noun) common aquatic plant of eastern North America having floating and submerged leaves and white yellow-spotted flowers | Synonyms: Cabomba caroliniana, water-shield |
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| felwort | (noun) gentian of Europe and China having creamy white flowers with fringed corollas | Synonyms: gentianella amarella |
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| figwort | (noun) any of numerous tall coarse woodland plants of the genus Scrophularia | - |
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| fleawort | (noun) plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative | Synonyms: Plantago psyllium, psyllium, Spanish psyllium |
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| frostwort | (noun) perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts | Synonyms: Crocanthemum canadense, frost-weed, frostweed, Helianthemum canadense |
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| fumewort | (noun) delicate European herb with greyish leaves and spikes of purplish flowers; formerly used medicinally | Synonyms: Fumaria officinalis, fumeroot, fumitory |
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| (noun) herb of northern Europe and Asia having erect racemes of red flowers | Synonyms: Corydalis solida, fumeroot |
| gipsywort | (noun) hairy Eurasian herb with two-lipped white flowers | Synonyms: gypsywort, Lycopus europaeus |
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| glasswort | (noun) fleshy maritime plant having fleshy stems with rudimentary scalelike leaves and small spikes of minute flowers; formerly used in making glass | Synonyms: Salicornia europaea, samphire |
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| (noun) bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash | Synonyms: barilla, kali, kelpwort, Salsola kali, Salsola soda, saltwort |
| gypsywort | (noun) hairy Eurasian herb with two-lipped white flowers | Synonyms: gipsywort, Lycopus europaeus |
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| hornwort | (noun) liverworts with slender hornlike capsules | - |
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| (noun) any aquatic plant of the genus Ceratophyllum; forms submerged masses in ponds and slow-flowing streams | - |
| kelpwort | (noun) bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash | Synonyms: barilla, glasswort, kali, Salsola kali, Salsola soda, saltwort |
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| leadwort | (noun) a plant of the genus Plumbago with blue flowers | Synonyms: Plumbago europaea |
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| liverwort | (noun) any of numerous small green nonvascular plants of the class Hepaticopsida growing in wet places and resembling green seaweeds or leafy mosses | Synonyms: hepatic |
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| madderwort | (noun) any of numerous trees or shrubs or vines of the family Rubiaceae | Synonyms: rubiaceous plant |
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| madwort | (noun) any garden plant of the genus Alyssum having clusters of small yellow or white flowers | Synonyms: alyssum |
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| masterwort | (noun) any plant of the genus Astrantia | Synonyms: astrantia |
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| milkwort | (noun) any of various plants of the genus Polygala | - |
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| miterwort | (noun) any of various rhizomatous perennial herbs of the genus Mitella having a capsule resembling a bishop's miter | Synonyms: bishop's cap, mitrewort |
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| mitrewort | (noun) any of various rhizomatous perennial herbs of the genus Mitella having a capsule resembling a bishop's miter | Synonyms: bishop's cap, miterwort |
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| moneywort | (noun) a loosestrife vine | Synonyms: creeping Charlie, creeping Jenny, Lysimachia nummularia |
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| moonwort | (noun) of America and Eurasia and Australia | Synonyms: Botrychium lunaria, common moonwort |
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| moorwort | (noun) wiry evergreen shrub having pendent clusters of white or pink flowers; of wet acidic areas in Arctic and Canada to northeastern United States | Synonyms: Andromeda glaucophylla, bog rosemary |
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| motherwort | (noun) bitter Old World herb of hedgerows and woodland margins having toothed leaves and white or pale pink flowers | Synonyms: Leonurus cardiaca |
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| mugwort | (noun) any of several weedy composite plants of the genus Artemisia | - |
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| pearlwort | (noun) any of various low-growing plants of the genus Sagina having small spherical flowers resembling pearls | Synonyms: pearl-weed, pearlweed |
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| pepperwort | (noun) annual herb used as salad green and garnish | Synonyms: common garden cress, garden pepper cress, Lepidium sativum, pepper grass |
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| (noun) any of several water ferns of the genus Marsilea having four leaflets | Synonyms: clover fern |
| pilewort | (noun) perennial herb native to Europe but naturalized elsewhere having heart-shaped leaves and yellow flowers resembling buttercups; its tuberous roots have been used as a poultice to relieve piles | Synonyms: lesser celandine, Ranunculus ficaria |
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| pillwort | (noun) European water fern found around margins of bodies of water or in wet acid soil having small globose sporocarps | Synonyms: Pilularia globulifera |
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| pipewort | (noun) aquatic perennial of North America and Ireland and Hebrides having translucent green leaves in a basal spiral and dense buttonlike racemes of minute white flowers | Synonyms: Eriocaulon aquaticum |
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| quillwort | (noun) any of several spore-bearing aquatic or marsh plants having short rhizomes and leaves resembling quills; worldwide except Polynesia | - |
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| ragwort | (noun) widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity | Synonyms: benweed, ragweed, Senecio jacobaea, tansy ragwort |
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| (noun) American ragwort with yellow flowers | Synonyms: butterweed, Senecio glabellus |
| ribwort | (noun) an Old World plantain with long narrow ribbed leaves widely established in temperate regions | Synonyms: buckthorn, English plantain, narrow-leaved plantain, Plantago lanceolata, ribgrass, ripple-grass |
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| rupturewort | (noun) common prostrate Old World herb often used as a ground cover; formerly reputed to cure ruptures | Synonyms: Hernaria glabra |
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| saltwort | (noun) low-growing strong-smelling coastal shrub of warm parts of the New World having unisexual flowers in conelike spikes and thick succulent leaves | Synonyms: Batis maritima |
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| (noun) bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash | Synonyms: barilla, glasswort, kali, kelpwort, Salsola kali, Salsola soda |
| sandwort | (noun) low-growing chiefly perennial plant usually with small white flowers suitable for e.g. rock gardens | - |
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| (noun) low-growing herb having clusters of small white four-petaled flowers | Synonyms: Moehringia lateriflora |
| (noun) loosely matted plant with moss-like foliage studded with tiny starry four-petaled white blossoms; mountains of central and southern Europe | Synonyms: Moehringia mucosa |
| sawwort | (noun) European perennial whose serrate leaves yield a yellow dye | Synonyms: Serratula tinctoria |
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| setterwort | (noun) digitate-leaved hellebore with an offensive odor and irritant qualities when taken internally | Synonyms: bear's foot, Helleborus foetidus, stinking hellebore |
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| slipperwort | (noun) any garden plant of the genus Calceolaria having flowers with large inflated slipper-shaped lower lip | Synonyms: calceolaria |
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| sneezewort | (noun) Eurasian herb having loose heads of button-shaped white flowers and long grey-green leaves that cause sneezing when powdered | Synonyms: Achillea ptarmica, sneezeweed yarrow |
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| soapwort | (noun) plant of European origin having pink or white flowers and leaves yielding a detergent when bruised | Synonyms: bouncing Bess, bouncing Bet, hedge pink, Saponaria officinalis |
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| spiderwort | (noun) any plant of the family Commelinaceae | Synonyms: dayflower |
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| spleenwort | (noun) any of various chiefly rock-inhabiting ferns of the genus Asplenium | - |
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| starwort | (noun) low-growing north temperate herb having small white star-shaped flowers; named for its alleged ability to ease sharp pains in the side | Synonyms: greater stitchwort, Stellaria holostea, stitchwort |
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| stitchwort | (noun) low-growing north temperate herb having small white star-shaped flowers; named for its alleged ability to ease sharp pains in the side | Synonyms: greater stitchwort, starwort, Stellaria holostea |
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| stonewort | (noun) any of various submerged aquatic algae of the genus Chara having nodes with whorled filamentlike branches; usually encrusted with calcium carbonate deposits | - |
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| swallowwort | (noun) perennial herb with branched woody stock and bright yellow flowers | Synonyms: celandine, Chelidonium majus, greater celandine, swallow wort |
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| (noun) tropical herb having orange-red flowers followed by pods suggesting a swallow with outspread wings; a weed throughout the tropics | Synonyms: Asclepias curassavica, blood flower |
| tailwort | (noun) hairy blue-flowered European annual herb long used in herbal medicine and eaten raw as salad greens or cooked like spinach | Synonyms: borage, Borago officinalis |
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| tetterwort | (noun) perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leaf and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant | Synonyms: bloodroot, puccoon, redroot, Sanguinaria canadensis |
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| thoroughwort | (noun) perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine | Synonyms: agueweed, boneset, Eupatorium perfoliatum |
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| throatwort | (noun) European bellflower with blue-purple to lilac flowers formerly used to treat sore throat | Synonyms: Campanula trachelium, nettle-leaved bellflower |
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| toothwort | (noun) North American herb with pungent scaly or toothed roots | Synonyms: Cardamine diphylla, crinkle-root, crinkle root, crinkleroot, Dentaria diphylla, pepper root |
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| umbrellawort | (noun) a plant of the genus Mirabilis | - |
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| wartwort | (noun) not unattractive European weed whose flowers turn toward the sun | Synonyms: devil's milk, Euphorbia helioscopia, sun spurge, wartweed |
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| whitlowwort | (noun) any of various low-growing tufted plants of the genus Paronychia having tiny greenish flowers and usually whorled leaves; widespread throughout warm regions of both Old and New Worlds; formerly thought to cure whitlows (suppurative infections around a fingernail) | - |
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| whorlywort | (noun) a tall perennial herb having spikes of small white or purple flowers; common in eastern North America | Synonyms: Culver's physic, Culver's root, Culvers physic, Culvers root, Veronicastrum virginicum |
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| wort | (noun) unfermented or fermenting malt | - |
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| (noun) usually used in combination: `liverwort', `milkwort', `whorlywort' | - |