
Marsh Grass Parnassus
Ter Yde, Belgium (July, 2016).
This is a very rare flower that grows in the dunes of Ter Yde. They have protected areas where marshes can grow in the dunes and this is where the Parnassus are.
Parnassus belong to the family Saxifragaceae. Each plant grows a single white, showy flower which stands atop an upright, slender, bald stem. The attractive flower consists of 5 conspicuously-veined petals that are 8 to 13 mm in length. the leaves are produced in a rosette at the base of the plant, except for a single leaf on the middle of the flowering stem. The leaves are heart-shaped and taper to the base. The numerous, tiny, oblong seeds are encased in an oval-shaped, four-valved fruit capsule.
http://ecopedia.be/933/planten/Parnassia

''Parnassia palustris'', commonly called marsh grass of Parnassus, northern grass-of-Parnassus, or just grass-of-Parnassus, and bog-star, is a species of the genus ''Parnassia''.