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witch grass

witch grass

1 8.3
A grass that spreads quickly and grows where it is not wanted
  • noun
  • /wɪtʃ ɡræs/
  • UK
: hierba de bruja
  • Invasive witch grass can quickly choke out more desirable crops if left unchecked.

Examples

  • The farmer struggled to control witch grass spreading across his cornfields.

  • Many gardeners mistake witch grass for an ornamental plant because of its delicate panicles.

  • The garden was overrun by witch grass.

  • Many farmers struggle with witch grasses in their fields.

  • Invasive witch grass can quickly choke out more desirable crops if left unchecked.

  • The farmer struggled to control witch grass spreading across his cornfields.

  • Many gardeners mistake witch grass for an ornamental plant because of its delicate panicles.

Synonyms

couch grass
vswitch grass
  • UK
1 7.5

A European grass with long underground roots that spreads quickly and becomes a common weed

highlights rapid spread and unwanted presence in cultivated areas
Johnson grass
vswitch grass
  • US
1 8.7

A tall grass that spreads quickly and often grows as a harmful weed sometimes used for animal feed

highlights rapid unwanted spread in fields rather than being cultivated for forage
cheatgrass
vswitch grass
  • Specialized
1 9.9

A fast-growing grass from Europe and Asia that often becomes a weed and replaces native plants

covers quickly spreading weeds in gardens or fields rather than annual detail
quack grass
vswitch grass
  • UK
1 8.8

A common weed with long stems under the ground that spreads quickly through lawns

emphasizes quick spread and garden or field nuisance rather than other traits
yard grass
vswitch grass
1 6.8

A rough grass that grows as a common yard weed with thin flower spikes

refers broadly to fast spreading unwanted grasses not specific flower shape
goat grass
vswitch grass
  • US
1 9.8

A European grass that grows as a weed and has sharp seeds that can injure farm animals that eat it

focuses on quick spreading nuisance in gardens rather than seed injury to animals
dog grass
vswitch grass
  • US
1 8.4

A grass from Europe that spreads quickly by stems under the ground and is a weed in North America

focuses on general quick spread and nuisance in gardens rather than stem type
witchgrass
vswitch grass
  • UK
1 9.8

A wild grass that grows in fields and along roads and spreads quickly

focuses on rapid spread and being unwanted rather than naming species
Agropyron repens
vswitch grass
  • UK
1 9.9

A fast-spreading European grass with long underground stems that is a common weed in gardens and fields

uses broader wording about quick spreading weeds in gardens or fields
quick grass
vswitch grass
  • Specialized
7.5

A fast-spreading grass with creeping roots that grows as a weed

stresses fast invasion and unwanted growth in fields or gardens
Panicum capillare
vswitch grass
  • Specialized
9.9

A North American grass with thin, brushy flower clusters that often grows as a weed in fields

focuses on quick spread and nuisance rather than floral shape
old witch grass
vswitch grass
  • US
9.6

A North American grass with thin, brush-like flower heads that often grows as a weed

emphasizes rapid spread and unwanted growth rather than only panicle shape
tumble grass
vswitch grass
  • US
9.4

A wild grass with thin brush-like seed heads that grows in fields

refers to fast spreading unwanted grasses rather than seed movement habit
means grass
vswitch grass
  • Specialized
8.9

A tall grass that spreads by creeping roots and feeds animals but can be a farm pest

is focused on quick unwanted spread in gardens rather than fodder use

Surface Forms

witch grass singular
witch grasses plural

Morphology

witch + grass

The compound clearly signals a type of grass (grass modified by 'witch'), so a B1 learner who knows 'witch' and 'grass' will infer it refers to a particular kind of grass. However, the specific sense — that it is a weedy, fast-spreading, unwanted species — is conventional and not fully predictable from the constituents, so full meaning requires lexical knowledge.

Etymology

Witch grass may come from old stories that blamed witches when a wild grass suddenly took over a garden. That's why the name now means a weedy plant that 'spreads quickly' and is 'hard to remove'.