- an annual grass, Digitaria sanguinalis, common in cultivated and waste grounds and often occurring as a pest weed in lawns.
Origin of crab grass
Examples from the Web for crab grass
Historical Examples of crab grass
It was autumn, and streaks of gray could be seen in the crab-grass.Up Terrapin River
Opie P. Read
In the economy of farmers entirely up against the crab-grass in the cotton-patch, the mule is mightier than the sword.Oklahoma Sunshine
Freeman E. (Freeman Edwin) Miller
In my opinion, crab-grass would answer well for pasture-grass in moist situations.
- any of several coarse weedy grasses of the genus Digitaria, which grow in warm regions and tend to displace other grasses in lawns