The Panicum maximum, a coarse tropical grass of Africa, introduced into many warm countries and extensively cultivated in the West Indies for pasturage. It is very nutritious.(noun)
The Century Dictionary (Public Domain)
Use "guinea-grass" in a sentence
"It was a rich, deep soil, covered with a rank tropic growth, the guinea-grass being higher than the head of a man on horseback."
"Bullocks especially, if fed with the fruit of this tree, guinea-grass, and _Batatilla_ (_Ipomoea brachypoda_, Benth.), soon get fat."
"This was not so much because the other darkey had omitted cutting the guinea-grass, which, of course, the horses would not now require until we returned from town, as from the circumstance of Pompey having had the chance of exhibiting his prowess in respect of the iguana."