penny grass
Học thuậtThân thiện
Definition
Noun: 1. A common weed: "Penny grass" refers to a widespread, often foul-smelling, Eurasian weed that has become established in other regions, notably North America. It is characterized by its round, flat seed pods.
Usage Notes
- "Penny grass" is a common name for a specific plant species. It is primarily used in botanical or agricultural contexts to identify this weed.
- The term is often considered informal or regional. In more formal or scientific writing, the plant's Latin name () or other common names like "field pennycress" are preferred.
Examples
- The farmer worked to control the spread of penny grass in his wheat field.
- Penny grass, with its distinctive flat pods, can be found along roadsides and in disturbed soil.
Advanced Usage
- The term can be used descriptively to highlight an unwanted, invasive quality.
- The vacant lot was overrun with penny grass and other weeds.
Variants and Related Words
- Field pennycress: A more precise and widely used common name for the same plant ().
- Stinkweed: Another common name that references the plant's unpleasant odor.
- Fanweed: A regional name for the same species.
- Thlaspi arvense: The formal botanical (Latin) name.
Synonyms
- Weed
- Field pennycress
Antonyms
- Cultivated crop
- Ornamental plant
Noun
- foetid Eurasian weed having round flat pods; naturalized throughout North America