old witchgrass

Thân thiện

An old witchgrass plant grows at the edge of a cultivated field.

Definition

Noun 1. A North American grass species: A type of annual grass native to North America, characterized by slender, brushy seed heads (panicles). It is often considered a weed in agricultural fields and cultivated land. * Scientific Name: Panicum capillare * Common Names: witchgrass, tumbleweed, common witchgrass

Usage Examples

• Noun:
  • The farmer worked to remove old witchgrass from his cornfield before it could set seed.
  • Old witchgrass is easily identified by its airy, branching panicles that detach and tumble in the wind.
  • This patch of old witchgrass has taken over the neglected garden.

Advanced Usage

• Ecological Role: While a weed in cultivation, old witchgrass can be a pioneer species in disturbed soils and provides food for some bird species.
• As a Tumbleweed: The mature plant often breaks at the base, allowing the dry, seed-bearing top to be blown by the wind, aiding seed dispersal. In this state, it is a classic "tumbleweed."

Variants and Related Words

• Witchgrass (n): A more common name for the same plant ().
• Tumbleweed (n): A general term for any plant that detaches and is rolled by the wind; old witchgrass is one specific type of tumbleweed.
• Panic grass (n): A common name for grasses in the genus , which includes old witchgrass.

Synonyms

• Common witchgrass
• Tumble panicgrass
• (scientific name)

Related Phrases

• To tumble like witchgrass: To be blown or carried aimlessly by the wind, like the detached seed head of this plant.
  • The dry leaves tumbled like witchgrass across the empty field.

Học thuật

Noun

1. North American grass with slender brushy panicles; often a weed on cultivated land

Từ đồng nghĩa

• witchgrass
• witch grass
• old witch grass
• tumble grass
• Panicum capillare