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(Plants) a herbaceous perennial N temperate marsh plant, Parnassia palustris, with solitary whitish flowers: family Parnassiaceae
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|Noun||1.||grass-of-Parnassus - any of various usually evergreen bog plants of the genus Parnassia having broad smooth basal leaves and a single pale flower resembling a buttercup|
genus Parnassia - genus of bog herbs of Arctic and northern temperate regions
bog star, Parnassia palustris - plant having ovate leaves in a basal rosette and white starlike flowers netted with green