The Collaborative International Dictionary
Water hyacinth \Wa"ter hy"a*cinth\ (Bot.) Either of several tropical aquatic plants of the genus Eichhornia, related to the pickerel weed.
Wiktionary
n. An aquatic flowering plant of the genus (taxlink Eichhornia genus noshow=1)
WordNet
n. a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States [syn: water orchid, Eichhornia crassipes, Eichhornia spesiosa]
Usage examples of "water hyacinth".
Parts of the waterway were covered with pavements of brick-red water fern or wide patches of water hyacinth, whose waxy white flowers breathed a sickly-sweet odor.
The water hyacinth is a pretty plant but is a disaster to inland waterways, growing at a prolific rate and choking off streams and bayous.
Finally, after about two miles of spreading a three-foot-high wash behind the shantyboat that swept into the marshlands and splayed the unbroken green mat of water hyacinth that spread from the river channel, Giordino observed two small fishing boats approaching on their way to Morgan City.
Beside me, Dorcas plucked a water hyacinth and put it in her hair.
Within a thousand years a detached scientist might compare their growth -from a perspective of millennia-to that of the spread of the water hyacinth on Earth in the pre-space days.
The ponds are shallow and filled with several varieties of duckweed, water hyacinth and algae.
After a minute or two of free flow, the hole was blocked and sealed by a clump of soil that formed the root-ball of a water hyacinth.
After it had been dredged and some hundreds of tons of water hyacinth removed, she had presented Patrick with an extraordinary map.
They could smell the water hyacinth which floated endlessly down to the sea.