crab grass

Thân thiện

Crab grass spreads quickly across the sunny lawn.

Definition

1. Noun:
   • A type of grass characterized by creeping stems that take root at the joints, often considered a troublesome weed in lawns and gardens.

Usage

• Noun:
  • The lawn was overrun with crab grass after a wet summer.
  • Effective lawn care requires preventing the spread of crab grass.

Advanced Usage

• As a collective noun: The term can refer to the plant collectively in an area.
  • The entire border was infested with crab grass.
• In gardening/agricultural contexts: Often discussed as a target for eradication or control.
  • The new herbicide is specifically formulated to target crab grass.

Variants and Related Words

• Crabgrass (n): A common alternative spelling, written as one word.
  • Pre-emergent herbicides help control crabgrass.
• Digitaria (n): The scientific genus name for many species of crab grass.

Synonyms

• Finger grass: A common name for some species within the genus.
• Hairy crabgrass: A specific type of crab grass ().

Notes on Meaning

• The term specifically denotes a weedy grass, not a desirable turf grass. Its "creeping" growth habit is its defining and most problematic characteristic, as it allows the plant to spread aggressively and choke out other plants.

Học thuật

Noun

1. grasses with creeping stems that root freely; a pest in lawns

Từ đồng nghĩa

• crabgrass
• finger grass