sword grass
Học thuậtThân thiện
Definition
Noun: 1. A type of grass or sedge: "Sword grass" refers to any of several species of grasses or sedges characterized by having long, narrow, stiff leaves with sharp, often cutting edges, resembling the shape of a sword blade.
Usage Notes
- The term "sword grass" is a common name, not a precise botanical classification. It is applied to various species in different regions based on the shared physical characteristic of sharp-edged, sword-like leaves.
- It is typically used in botanical, ecological, or descriptive natural contexts.
- The sharp edges of the leaves can easily cut human skin, which is a key identifying feature.
Examples
- General Use:
- Hikers were warned to avoid the patches of sword grass along the trail.
- The wetland was dominated by tall reeds and sword grass.
- He cut his hand while clearing the dense sword grass from the garden.
Advanced Usage
- Ecological Role: In ecological writing, "sword grass" may be mentioned as a component of specific habitats, such as coastal dunes or wetlands.
- The dune system is stabilized by pioneer species like marram grass and sword grass.
Variants and Related Words
- Blady grass (): A specific and widespread species often called "sword grass" or "cogon grass" in many regions.
- Sedge: A family of grass-like plants (Cyperaceae) to which some plants called "sword grass" belong.
- Cutting grass: Another common name used for similar sharp-edged grasses.
Synonyms
- Blady grass
- Cogon grass (for )
- Spear grass (Note: "Spear grass" often refers to grasses with sharp seed heads, not necessarily sharp leaf edges, so it is not a perfect synonym.)
Notes on Different Meanings
- The primary and essentially only meaning of "sword grass" is botanical, referring to the physical description of the plant's leaves. It does not have common idiomatic or figurative meanings.
Noun
- any of various grasses or sedges having sword-shaped leaves with sharp edges