large crabgrass
Học thuậtThân thiện
Definition
Noun: * A European forage grass (Digitaria sanguinalis) cultivated for hay, which has become a widespread, naturalized weed in the United States and other regions.
Usage
This is a specific botanical term used to identify a particular species of grass. It is primarily used in agricultural, horticultural, and ecological contexts. * It functions as a common name for the plant species Digitaria sanguinalis. * It is often discussed in terms of its dual role as a cultivated forage crop and an invasive weed.
Examples
- The field was overrun with large crabgrass, outcompeting the desired lawn grasses.
- Farmers in some regions still grow large crabgrass as a summer forage crop for livestock.
- Effective management of large crabgrass is a common challenge for gardeners and turf professionals.
Advanced Usage
- The term can be used in comparative discussions about weed species: "Unlike smooth crabgrass, large crabgrass has hairs on its leaf sheaths."
- In ecological writing, it may be described as a "naturalized" or "adventive" species, indicating its non-native but established status.
Variants and Related Words
- Hairy crabgrass: Another common name for the same species (), referring to the hairy characteristics of its leaves and stems.
- Crabgrass: The general common name for plants in the genus , which includes both large crabgrass and smooth crabgrass ().
- Digitaria sanguinalis: The formal botanical (Latin) name for the species.
Synonyms
- Hairy crabgrass
- Summer grass (a general name in some regions for fast-growing, warm-season annual grasses)
Related Phrases/Idioms
- No direct idioms or phrasal verbs are associated with this specific botanical term.
Noun
- a European forage grass grown for hay; a naturalized weed in United States