downy brome

Thân thiện

A farmer pulls downy brome from a wheat field.

Definition

1. Noun:
   • A type of annual or winter annual grass: "downy brome" refers to a species of grass that completes its life cycle in one year or, as a winter annual, germinates in autumn and completes its life cycle by the following summer.
   • Characterized by softly hairy leaves: The plant is notably identified by its leaves, which are covered in a soft, down-like hair.
   • Native to the Mediterranean region: This grass species is originally from the area surrounding the Mediterranean Sea.

Usage Examples

• Noun:
  • The field was invaded by downy brome, which outcompeted the native grasses.
  • Farmers consider downy brome a problematic weed in winter wheat crops.
  • The softly hairy leaves of downy brome help distinguish it from other brome grasses.

Advanced Usage

• As an invasive species: In contexts like ecology or agriculture, "downy brome" is often discussed as an invasive weed that disrupts local ecosystems and agriculture.
  • The spread of downy brome has altered the fire regime in many western rangelands.

Variants and Related Words

• Scientific name: .
  • Bromus tectorum, commonly known as downy brome, is highly adaptable.
• Common names: "cheatgrass" and "drooping brome" are other frequently used names for the same species.
  • Cheatgrass, or downy brome, is a major fire hazard in dry seasons.

Synonyms

• Cheatgrass: A common synonym, especially in North America, emphasizing its weedy nature.
• Drooping brome: Another name referring to the same species, highlighting the appearance of its seed heads.

Học thuật

Noun

1. annual or winter annual grass with softly hairy leaves of the Mediterranean

Từ đồng nghĩa

• downy bromegrass
• downy cheat
• downy chess
• cheatgrass
• drooping brome
• Bromus tectorum