Parnassiaceae Gray are a family of Flowering plants in the eudicot order Celastrales. It is not recognized in the APG III system of plant classification. When that system was published in 2009, Parnassiaceae were treated as a segregate of an expanded Celastraceae. Parnassiaceae have only two genera, Lepuropetalon and Parnassia. Lepuropetalon has o...