old witch grass
Học thuậtThân thiện
Definition
Noun: * A type of grass: A North American grass (Panicum capillare) characterized by slender, brushy, and often spreading seed heads (panicles). It is commonly found as a weed in cultivated fields and disturbed soils.
Usage Notes
- "Old witch grass" is the common name for a specific species of annual grass. It is primarily used in botanical, agricultural, or gardening contexts to identify this plant, often highlighting its weedy nature.
- The term is a compound noun where "old witch" functions as a modifier for "grass," creating a fixed name for the plant. It is typically used as a singular, countable noun.
Examples
- The farmer worked to control the old witch grass invading his cornfield.
- Old witch grass can be identified by its airy, branching seed heads that detach and tumble in the wind.
- A patch of old witch grass had taken over the abandoned lot.
Advanced Usage
- The plant's tendency to spread its seeds via wind-blown panicles is a key characteristic often mentioned when discussing old witch grass as an agricultural pest.
Variants and Related Words
- Witchgrass: A more common shortened name for the same plant ().
- Tumbleweed grass: Another common name referring to its habit of breaking off and tumbling to disperse seeds.
- Panicum capillare: The formal botanical/scientific name.
Synonyms
- Witchgrass
- Tumbleweed grass
- Panic grass (a broader term for grasses in the genus)
Antonyms
- Crop plant
- Cultivated grass (e.g., wheat, barley, lawn grass)
Noun
- North American grass with slender brushy panicles; often a weed on cultivated land