• Parnassia Linnaeus, 1753
• Parnassia americana Muhl. accepted as Parnassia glauca Raf.
• Parnassia asarifolia Vent.
• Parnassia californica (Gray) Greene
• Parnassia caroliniana Michx.
• Parnassia cirrata Piper
• Parnassia fimbriata König
• Parnassia floridana Rydb. accepted as Parnassia caroliniana Michx.
• Parnassia glauca Raf.
• Parnassia grandifolia DC.
• Parnassia intermedia Rydb. accepted as Parnassia fimbriata König
• Parnassia kotzebuei Cham. ex Spreng.
• Parnassia montanensis Fern. & Rydb. ex Rydb. accepted as Parnassia palustris Linnaeus
• Parnassia multiseta (Ledeb.) Fern. accepted as Parnassia palustris Linnaeus
• Parnassia palustris Linnaeus
• Parnassia parviflora DC. accepted as Parnassia palustris Linnaeus
• Parnassiaceae Martinov, 1820 accepted as Celastraceae R. Brown, 1814
• Parnassiales accepted as Celastrales
• Parnassiana Zeuner, 1941 (uncertain)