[water hyacinth] n (ca. 1890): a showy floating aquatic plant (Eichhornia crassipes of the family Pontederiaceae) of tropical America that often clogs waterways (as in the southern U.S.)
WATER HYACINTH
Meaning of WATER HYACINTH in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012