is a specific kind of: liliopsid genus, monocot genus.

has as a member: barn grass, barn millet, barnyard grass, Echinochloa crusgalli | billion-dollar grass, Echinochloa frumentacea, Japanese barnyard millet, Japanese millet, sanwa millet.

is a member of: family Graminaceae, family Gramineae, family Poaceae, Graminaceae, Gramineae, grass family, Poaceae.