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alligator weed

alligator weed

9.9
An aquatic plant from South America with long grasslike leaves that forms thick floating mats and clogs waterways
  • noun
  • /ˈælɪˌɡeɪtər wid/
translation icon : hierba alligator
  • Alligator weed forms dense floating mats that can block sunlight and suffocate aquatic life.

Examples

  • The dense mats of alligator weed can severely disrupt boating and fishing activities.

  • Authorities have implemented control measures to prevent the spread of alligator weed in local waterways.

  • Alligator weed is considered an invasive species in many regions outside its native South America.

  • The alligator weed spread rapidly across the pond.

  • Farmers are concerned about the impact of alligator weeds on their crops.

  • Invasive alligator weed can thrive in various water bodies, making it difficult to manage.

  • The quick growth of alligator weed poses a challenge for local environmental agencies trying to maintain clear waterways.

Synonyms

alligator grass
vsalligator weed
8.3

A fast-growing water plant with long grass-like leaves that forms thick floating mats

is more about general vigorous habit rather than only growth speed
Alternanthera philoxeroides
vsalligator weed
  • Specialized
9.9

A fast growing South American water plant that forms thick mats and clogs waterways

is described neutrally as a vigorous plant rather than as a weed

How Invasive

alligator weed
9.9
pondweed
1 6.8
cattail
  • US
5 4.2

Surface Forms

Morphology

alligator + weed

The form follows a common noun+noun compounding pattern where 'alligator' modifies 'weed', so a B1 learner who knows 'alligator' and 'weed' can infer it is a type of weed (likely associated with alligators or aquatic habitats). While the precise botanical details (its South American origin and tendency to form dense floating masses) are not predictable from the parts, the basic idea 'a kind of weed' is compositionally clear.

Etymology

Alligator weed may come from the way its thick floating mats look like an alligator's rough back and from the fact it grows in water where alligators live. That's why the name fits this weed that spreads fast and forms dense masses that clog waterways.