barnyard grass

noun

1. a weedy, coarse grass, Echinochloa crus-galli, having a spikelike cluster of flowers.

Word History and Origins

Origin of barnyard grass¹

An Americanism dating back to 1835–45

Example Sentences

The sole use of de-weeding by hand has resulted in the surge of barnyard grass species that look indistinguishable from rice plants until they are ready to drop their seed.

From Washington Times