Grass Of Parnassus, Marsh grass of Parnassus, Mountain grass of Parnassus, Alaska grass of Parnass

Parnassia palustris

Physical Characteristics

Parnassia palustris is an evergreen Perennial growing to 0.3 m (1ft) by 0.1 m (0ft 4in). See above for USDA hardiness. It is hardy to UK zone 4. It is in leaf all year, in flower from July to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, beetles. The plant is self-fertile. Suitable for: light (sandy) and medium (loamy) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very alkaline soils. It can grow in semi-shade (light woodland) or no shade. It prefers wet soil.

Distribution

Europe, including Britain, from Scandanavia south and east to Spain, Greece and temperate Asia.

Habitats

Bog Garden;

Edible Uses

None known

Medicinal Uses

Astringent Diuretic Ophthalmic Sedative Tonic Vulnerary The whole plant is astringent, slightly diuretic, sedative, tonic and vulnerary[7, 9]. A decoction is occasionally used as a mouthwash in the treatment of stomatitis[7]. The dried and powdered plant can be sprinkled onto wounds to aid the healing process[7]. The plant is harvested in the summer or autumn and can be dried for later use[7]. A distilled water made from the plant is an excellent astringent eye lotion[7].

Known Hazards

None known