witchgrass

• 指多种被视为杂草的禾本科植物，尤指匍匐冰草或野生黍类，生长迅速且常蔓延于耕地，在北美尤为常见。

A noun referring to a type of grass, often considered a weed, that spreads rapidly and is found in cultivated land, particularly in North America.

1. North American weed grassC1formalamerican

   A North American grass with slender, brushy panicles, often found as a weed on cultivated land.

   北美杂草

   • Witchgrass can quickly overtake a garden if not controlled.
   • Farmers often struggle to remove witchgrass from their fields.
   • The slender panicles of witchgrass are distinctive in late summer.

   同义词witch grass

2. European creeping grassC1formal

   A European grass that spreads rapidly by creeping rhizomes, naturalized in North America as a weed.

   匍匐冰草

   • Witchgrass was introduced to North America from Europe centuries ago.
   • Its creeping rhizomes make witchgrass difficult to eradicate.
   • This variety of witchgrass thrives in disturbed soils.

   同义词couch grassquackgrass