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

Barnyard grass (Panicum crusgalli) behaved like pigweed, and 'needed considerable attention.'

From Project Gutenberg