A tough creeping grass that can become an invasive weed.
黍属禾草
couch grass.
(also 'old witch grass') a North American grass (Panicum capillare, family Gramineae).
Example sentencesExamples
When a visitor stands in the center of the trail and scans eastward across the tops of a myriad of purple meadow rue, old witch grass, big blue stem, and wild raspberries and plum, ‘natural history’ becomes visually literal.
I've done two years of lasagne composting, followed by two layers of weed cloth, and then about six inches of wood chips - the witch grass keeps coming through with a vengeance.
Witch grass is an annual grass native to North America that infests field crops, small grains, grasslands, and a variety of other habitats.