grass-of-Parnassus
[ gras-uh v-pahr-nas-uh s, grahs- ]
/ ˈgræs əv pɑrˈnæs əs, ˈgrɑs- /
noun
any plant belonging to the genus Parnassia, of the saxifrage family, growing in marshy areas, having broad, smooth leaves and a single, pale flower.
British Dictionary definitions for grass-of-parnassus
grass-of-Parnassus
noun
a herbaceous perennial N temperate marsh plant, Parnassia palustris, with solitary whitish flowers: family Parnassiaceae