Parnassia fimbriata is a species of flowering plant in the family Celastraceae known by the common name fringed grass of Parnassus.

[2] It is native to western North America from Alaska and northwestern Canada to the southern Rocky Mountains, where it is a plant of alpine and subalpine environments, usually in wet areas.

It is a perennial herb producing an erect flowering stem from a patch of basal leaves.

The inflorescence may be up to 40 centimeters tall and consists of a mostly naked peduncle with one clasping bract midway up.

The single flower has five small jagged sepals behind five veined, fringed white petals each roughly a centimeter long.