Parnassia palustris (Grass of Parnassus) - photos and description

Parnassia palustris

Parnassia palustris
15 ruler for scale

Parnassia palustris

General: Perennial plants with slender stems from a basal rosette of leaves. Flowering stem is four-angled. Plants are glabrous.

Flowers: Flowers single, terminal on long scapes, we measured a flower at 2.5 cm in diameter.

Leaves: Leaves mostly basal, basal leaves ovate with cordate bases, and with long petioles. We measured a basal leaf at 20 mm long and 15 mm wide. Scapes have a single leaf clasping the scape below the midway point of the scape.

Height: Budd's Flora lists the height to 30 cm, the plant in the above photo was 32 cm tall.

Habitat: Moist to wet ground, often calcareous soil.

Abundance: Common.

Origin: Native.

When and where photographed: Took the above photos on July 5th in a moist meadow among aspen woods, parklands, about 65 km south east of our home in Regina, SK.