nut grass
C1/C2technical/agricultural
Definition
Meaning
A common perennial weed with underground tubers that resemble nuts, belonging to the sedge family.
Any of several sedges with edible tubers; metaphorically, something persistent and difficult to eradicate.
Linguistics
Semantic Notes
Primarily refers to Cyperus rotundus (purple nutsedge) or Cyperus esculentus (yellow nutsedge); the name derives from the small, nut-like tubers.
Dialectal Variation
British vs American Usage
Differences
Both varieties use the term, but 'nutgrass' (one word) is more common in American agricultural texts.
Connotations
Neutral/botanical in both; slightly more colloquial as 'nutgrass' in US.
Frequency
Low in general English; higher in gardening, farming, or weed-control contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [area] is infested with nut grass.Nut grass [verb: spreads/chokes/returns].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “like trying to pull up nut grass (meaning: a futile, repetitive task)”
Usage
Context Usage
Business
Rare; possible in agricultural supply or landscaping contexts.
Academic
Used in botany, agriculture, or environmental science papers.
Everyday
Uncommon; mainly by gardeners or farmers discussing weeds.
Technical
Common in agronomy, horticulture, and weed management literature.
Examples
By Part of Speech
verb
British English
- The entire lawn has been nut-grassed.
- We need to stop it nut-grassing the borders.
American English
- The field got nutgrassed last summer.
- It's nutgrassing the whole plot.
adverb
British English
- The weeds spread nut-grass rapidly.
- It regrew nut-grass stubbornly.
American English
- It grows nutgrass aggressively.
- The tubers multiply nutgrass freely.
adjective
British English
- A nut-grass infestation
- nut-grass control methods
American English
- Nutgrass problems
- a nutgrass-filled yard
Examples
By CEFR Level
- There is nut grass in the garden.
- The nut grass is a weed.
- Nut grass can spoil a lawn.
- We removed the nut grass from the flowerbed.
- Despite regular weeding, the nut grass returned because its tubers remained.
- Effective nut grass control requires herbicides that target the tubers.
- The persistence of nut grass is attributable to its extensive tuber network, which facilitates rapid regrowth after superficial removal.
- Agricultural studies compare the efficacy of pre-emergent versus post-emergent herbicides on nut grass colonies.
Learning
Memory Aids
Mnemonic
Think 'nuts + grass' – a grass-like weed that grows from small, hard tubers resembling nuts.
Conceptual Metaphor
A persistent problem (like nut grass) keeps coming back unless completely removed.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate literally as 'ореховая трава' – use 'сыть' or 'осока' with explanation.
- Avoid confusing with 'groundnut' or 'peanut' (арахис).
Common Mistakes
- Writing 'nutgrass' vs. 'nut grass' inconsistently.
- Confusing with 'couch grass' or other rhizomatous weeds.
Practice
Quiz
What is nut grass primarily known for?
FAQ
Frequently Asked Questions
Yes, 'nut grass' is a common name for plants in the nutsedge (Cyperus) genus, particularly purple or yellow nutsedge.
Because it reproduces via underground tubers that can survive for years and regrow even if the surface plant is pulled up.
Some species, like Cyperus esculentus (tiger nut), produce edible tubers used in food and beverages, but most are considered invasive weeds.
It is less common in the UK than in warmer climates, but it can occur in gardens and greenhouses, especially in southern England.