billion-dollar grass

Từ điển WordNet v3.1 - WordNet Dictionary

noun

coarse annual grass cultivated in Japan and southeastern Asia for its edible seeds and for forage;
important wildlife food in United States
• Syn:
Japanese millet, Japanese barnyard millet, sanwa millet, Echinochloa frumentacea
• Hypernyms:
millet
• Member Holonyms:
Echinochloa, genus Echinochloa