weed : Idioms & Phrases

• noun gentian of eastern North America having clusters of bristly blue flowers
  Gentiana quinquefolia; Gentianella quinquefolia; stiff gentian; agueweed; five-flowered gentian.
  

WordNet

• noun prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses
  Alternanthera philoxeroides; alligator grass.
  

WordNet

Bish"op's-weed` noun

Definitions

1. (Bot.) (a) An umbelliferous plant of the genus Ammi. (b) Goutweed (Ægopodium podagraria).

Webster 1913

• noun annual of southwestern United States having rigid woody branches with sticky foliage and yellow flowers
  Gutierrezia texana; broomweed.
  

WordNet

• noun erect perennial of eastern and southern United States having showy orange flowers
  Indian paintbrush; pleurisy root; chigger flower; tuber root; chiggerflower; Asclepias tuberosa; orange milkweed.
  

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• noun sage of eastern United States
  cancerweed; Salvia lyrata.
  

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• noun a shrub of salt marshes of eastern and south central North America and West Indies; fruit is surrounded with white plumelike hairy tufts
  cotton-seed tree; groundsel bush; groundsel tree; Baccharis halimifolia.
  

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• noun any of several leguminous plants of western North America causing locoism in livestock
  crazyweed; locoweed.
  

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• noun tropical annual procumbent poisonous subshrub having fruit that splits into five spiny nutlets; serious pasture weed
  Tribulus terestris; caltrop.
  

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• noun aromatic threadlike foliage of the dill plant used as seasoning
  dill.
  

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• . See Dyer's broom, under Broom.

Webster 1913

• noun eastern North American herb whose yellow flowers are (or were) used in dyeing
  Solidago rugosa.
  

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• noun South African bulbous wood sorrel with showy yellow flowers
  Oxalis pes-caprae; Oxalis cernua; Bermuda buttercup.
  

WordNet

• a weed which grows on plowed land. Shak.

Webster 1913

• (Bot.), the Sisymbrium Sophia, a kind of hedge mustard, formerly used as a remedy for dysentery.

Webster 1913

• noun foetid Eurasian weed having round flat pods; naturalized throughout North America
  penny grass; stinkweed; mithridate mustard; field pennycress; fanweed; Thlaspi arvense.
  

WordNet

• 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
  frostwort; frostweed; Helianthemum canadense; Crocanthemum canadense.
  
• noun tall perennial herb having clusters of white flowers; the eastern United States
  Verbesina virginica; frostweed; Virginia crownbeard.
  

WordNet

• (Bot.), the teasel (Dipsacus fullonum) whose burs are used by fullers in dressing cloth. See Teasel.

Webster 1913

• noun annual spurge of western United States having showy white-bracted flower clusters and very poisonous milk
  snow-on-the-mountain; Euphorbia marginata; snow-in-summer.
  

WordNet

• (Bot.), a scrophulariaceous plant, of the genus Capraria (C. biflora).

Webster 1913

• (Bot.), a branching seaweed (Sargassum bacciferum, or sea grape), having numerous berrylike air vessels, found in the Gulf Stream, in the Sargasso Sea, and elsewhere.

Webster 1913

• noun much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida
  indigo broom; Baptisia tinctoria; horsefly weed.
  

WordNet

• noun intensely poisonous tall coarse annual tropical weed having rank-smelling foliage, large white or violet trumpet-shaped flowers and prickly fruits
  jimsonweed; Jamestown weed; apple of Peru; common thorn apple; Datura stramonium.
  

WordNet

James"town` weed`

Definitions

1. (Bot.) The poisonous thorn apple or stramonium (Datura stramonium), a rank weed early noticed at Jamestown, Virginia. See Datura. ✍ This name is often corrupted into jimson, jimpson, and gympsum.

Webster 1913

• noun intensely poisonous tall coarse annual tropical weed having rank-smelling foliage, large white or violet trumpet-shaped flowers and prickly fruits
  jimsonweed; Jamestown weed; apple of Peru; common thorn apple; Datura stramonium.
  

WordNet

Jim"son weed`

Definitions

1. . See Jamestown weed. Local, U.S.

Webster 1913

• noun North American herb having whorled leaves and terminal clusters of flowers spotted with purple
  Eupatorium purpureum; marsh milkweed; Joe-Pye weed; purple boneset.
  
• noun North American herb having whorled leaves and terminal clusters of small pinkish or purple flower heads
  Eupatorium maculatum; Joe-Pye weed.
  

WordNet

Joe`-Pye" weed`

Definitions

1. (Bot.) A tall composite plant of the genus Eupatorium (E. purpureum), with purplish flowers, and whorled leaves.

Webster 1913

• noun yellow-flowered perennial common in fields and waste places but a weed in rangelands
  Hypericum perforatum.
  

WordNet

• (Bot.), the tropical plant Scapania aulcis.

Webster 1913

• noun an American mint that yields a resinous exudate used especially formerly as an antispasmodic
  blue skullcap; mad-dog skullcap; Scutellaria lateriflora; blue pimpernel.
  

WordNet

• (Bot.), an aquatic herb with dentate or pectinate leaves (Proserpinaca palustris and P. pectinacea).

Webster 1913

• (Bot.), a genus of slender umbelliferous herbs (Discopleura) growing in wet places.

Webster 1913

Or*chil"la weed`

Definitions

1. (Bot.) The lichen from which archil is obtained. See Archil.

Webster 1913

• (Bot.), a suffrutescent plant (Bocconia frutescens) of the Poppy family, native of the warmer parts of America. It has very large, sinuate, pinnatifid leaves, and small, panicled, apetalous flowers.

Webster 1913

• noun any of various low-growing plants of the genus Sagina having small spherical flowers resembling pearls
  pearlwort; pearlweed.
  

WordNet

• (Bot.), the butterbur coltsfoot (Petasites vulgaris), so called because formerly considered a remedy for the plague.

Webster 1913

• noun American plant having spikes of blue flowers and growing in shallow water of streams and ponds
  pickerelweed; Pontederia cordata; wampee.
  

WordNet

• (Bot.), a blue-flowered aquatic plant (Pontederia cordata) having large arrow-shaped leaves. So called because common in slow-moving waters where pickerel are often found.

Webster 1913

• noun annual wiry-stemmed North American weed with minute scalelike leaves and small yellow flowers
  pineweed; Hypericum gentianoides; orange grass; nitweed.
  

WordNet

• noun annual aromatic weed of Pacific coastal areas (United States and northeastern Asia) having bristle-pointed leaves and rayless yellow flowers
  Matricaria matricarioides; rayless chamomile.
  

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• noun deciduous perennial low-growing fetid swamp plant of eastern North America having minute flowers enclosed in a mottled greenish or purple cowl-shaped spathe
  foetid pothos; Symplocarpus foetidus; skunk cabbage.
  

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• noun perennial herb of North American prairies having dense heads of small white flowers
  Desmanthus ilinoensis; prairie mimosa.
  

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• noun low-growing sticky subshrub of southwestern United States having narrow linear leaves on many slender branches and hundreds of tiny yellow flower heads
  Gutierrezia sarothrae; rabbit-weed; rabbitweed; snakeweed; broom snakeroot; broom snakeweed.
  

WordNet

• noun much-branched erect herb with bright yellow flowers; distributed from Massachusetts to Florida
  indigo broom; Baptisia tinctoria; horsefly weed.
  

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• noun a hawkweed with a rosette of purple-veined basal leaves; Canada to northern Georgia and Kentucky
  Hieracium venosum.
  

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• (Bot.), a plant of the composite genus Hieracium (H. venosum); probably so named from its spotted leaves. See also Snakeroot.

Webster 1913

• noun Canadian dogbane yielding a tough fiber used as cordage by Native Americans; used in folk medicine for pain or inflammation in joints
  Apocynum cannabinum; Indian hemp.
  
• noun North American perennial having pinkish flowers in loose cymes; used in folk medicine for pain or inflammation in joints
  common dogbane; Apocynum androsaemifolium; spreading dogbane.
  

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• noun any plant of the genus Phacelia
  scorpionweed; phacelia.
  

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• noun tall herb of the Rocky Mountains having sticky leaves and an offensive smell
  Polemonium viscosum; skunkweed.
  

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• noun tall arborescent yucca of southwestern United States
  Yucca elata; soap tree; soapweed.
  

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• noun North American herb having whorled leaves and terminal clusters of small pinkish or purple flower heads
  Eupatorium maculatum; Joe-Pye weed.
  

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• noun dark green erect herb of northwestern United States and southwestern Canada having stiff leaves in dense tufts and yellow flower heads; sometimes placed in genus Haplopappus
  Haplopappus acaulis; Stenotus acaulis.
  

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• noun very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia
  Senna occidentalis; stinking weed; mogdad coffee; Cassia occidentalis; coffee senna.
  

WordNet

• noun very leafy malodorous tropical weedy shrub whose seeds have been used as an adulterant for coffee; sometimes classified in genus Cassia
  Senna occidentalis; stinking weed; mogdad coffee; Cassia occidentalis; coffee senna.
  

WordNet

• (Bot.), an American leguminous herb (Cassia occidentalis) closely related to the wild senna.

Webster 1913

• noun any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America
  tickweed; coreopsis; tickseed.
  

WordNet

• noun North American herb having whorled leaves and terminal clusters of flowers spotted with purple
  Eupatorium purpureum; marsh milkweed; Joe-Pye weed; purple boneset.
  

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• noun aromatic plant of western United States
  camphorweed; Trichostema lanceolatum; vinegarweed.
  

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• noun low-growing sticky subshrub of southwestern United States having narrow linear leaves on many slender branches and hundreds of tiny yellow flower heads
  Gutierrezia sarothrae; rabbit-weed; rabbitweed; snakeweed; broom snakeroot; broom snakeweed.
  

WordNet

• a hook used for cutting away or extirpating weeds.

Webster 1913

• noun a chemical agent that destroys plants or inhibits their growth
  weedkiller; herbicide.
  

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• verb remove unwanted elements
  comb out.
  
  • The company weeded out the incompetent people
  • The new law weeds out the old inequities

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• noun a hand tool for removing weeds
  weeder.
  

WordNet

Weed"ing-rhim` noun

Etymology

Cf. Prov. E. rim to remove.

Definitions

1. A kind of implement used for tearing up weeds esp. on summer fallows. Prov. Eng.

Webster 1913

• noun a black garment (dress) worn by a widow as a sign of mourning
  weeds.
  

WordNet

Wil"low-weed` noun

Definitions

1. (Bot.) (a) A European species of loosestrife (Lysimachia vulgaris). (b) Any kind of Polygonum with willowlike foliage.

Webster 1913

Yaw"-weed` noun

Definitions

1. (Bot.) A low, shrubby, rubiaceous plant (Morinda Royoc) growing along the seacoast of the West Indies. It has small, white, odorous flowers.

Webster 1913