Definition

Noun 1. Yellow Foxtail, Yellow Bristlegrass: A common annual grass (Setaria pumila, formerly Setaria glauca) characterized by its bristly, cylindrical seed heads that resemble a fox's tail. It is widely considered a weedy species in temperate regions around the world.

Usage

• The field was infested with Setaria glauca, its yellow bristles catching the light.
• As a common weed, Setaria glauca competes aggressively with crops for nutrients and water.
• The botanist identified the invasive grass as Setaria glauca.

Advanced Usage

• In botanical and agricultural contexts, Setaria glauca is often discussed as a model for studying weed biology and invasive species management.
• The species name glauca refers to a grayish-blue or bluish-green color, which can sometimes be observed on the leaves or sheaths.

Variants and Related Words

• Yellow Foxtail: The most common common name for this plant.
• Yellow Bristlegrass: Another common name emphasizing its bristly seed head.
• Pigeon Grass: A regional common name.
• Setaria pumila: The currently accepted scientific name, with often used as a synonym in older literature.

Synonyms

• Yellow foxtail
• Yellow bristlegrass
• Pigeon grass

Related Terms (Contextual)

• Weed: A plant considered undesirable in a particular situation.
• Annual grass: A grass that completes its life cycle in one year.
• Bristle: A stiff hair or similar structure on the seed head.
• Inflorescence: The complete flower head of a plant, including its seed-bearing structure.

Noun

1. common weedy and bristly grass found in nearly all temperate areas