Grass of Parnassus

'Pale star that by the lochs of Galloway,
In wet green places 'twixt the depth and heigh,
Dost keep thine hour while Autumn ebbs away,
When now the moors have doffed the heather bright,
Grass of Parnassus, flower of my delight.....'

Andrew Lake
Parnassia grandifolia.