potamogeton gramineous

English Thesaurus

1. of Europe (except the Mediterranean area) and the northern United States (noun.plant)

hypernym	:	pondweed,
definition	:	any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae (noun.plant)

member meronym	:	genus potamogeton, potamogeton,
definition	:	a large genus of aquatic herbs found in quiet waters in temperate regions; leaves usually float on the water (noun.plant)