genus of perennial aquatic plants of the family Limnocharitaceae, consisting of three or four species, all native to tropical America. The water poppy (H. nymphoides), which has yellow flowers about 5 cm (2 inches) across, is the only cultivated species and is grown in ponds and aquariums.
HYDROCLEYS
Meaning of HYDROCLEYS in English
Britannica English vocabulary. Английский словарь Британика. 2012